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Test your basic knowledge |
Clinical Surgery
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Study First
Subjects
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health-sciences
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surgery
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What is the difference in the clinical course of hypertrophic and keloid scars?
A blind-ending track -typically lined by epithelial or granulation tissue - which opens onto an epithelial surface
Hypertrophic scars tend to appear soon after injury and usually regress spontaneously - while keloid scars appear months after injury and continue to grow
Bronchial carcionoma - Chronic suppurative lung disease(abscess -bronchiectasis -cystic fibrosis -empyema) - Fibrosing alveolitis - Mesothelioma
Pregnancy - Ascites - Ovarian cysts - Fibroids - Bowel distension
2. What do you know about solitary thyroid nodules?
Wash Hands - Observe from end of bed - Start examination from right-hand side - Look for JACCOL which means jaundice -anaemia -cyanosis -clubbing -oedema and lymphadenopathy - Observation -Palpation -Percussion and Auscultation
Recurrence of the cyst - Developement of a chronic -discharging sinus
More common in females - Occur most commonly in the fourth or fifth decade - 10% in middle-aged are malignant but 50% are malignat in the young and the elderly - FNAC is the most important investigation
Presence of multiple neurofibromas in a patient - in combination with other dermatological manifestations(six cafe-au-lait psots) - It is an autosomal dominant condition with two types: 1 and 2.
3. What is the surgical treatment of venous ulcers?
If the ulcer fails to heal - careful consideration should be given to excluding other causes such as malignant Marjolin ulcer and the area may need to be biopsied - Otherwise a split skin graft should be considered with excision of the dead skin and
Hyperkeratoses(thickening of the keratin layer) - Focal parakeratosis - Irregular acanthosis - Basal layer atypia only
Leave alone if asymptomatic and if patient does not want intervention - Intervene only when extensive or for cosmetic reasons with local radiotherapy and/or chemotherapy using interferon-alpha -doxorubicin and intralesional vinblastine.
Motility disorders - diffuse oesophageal spasm and achalasia - Neurological disease such as myaesthenia gravis - bulbar palsy including MND and cerebrovascular accident with involvement of the 9th -10th and 12th cranial nerves.
4. What are the 'transudate' causes of a pleural effusion?
An abnormal sac containing gas -fluid or semisolid material - with an epithelial lining
It reduces intravascular hydrostatic pressure and the stockings increase extracellular hydrostatic pressure - together reducing the level of tissue oedema.
Ulcer is distal to the fistula - Shallow indolent ulcers
Cardiac failure - Metabolic disorders leading to hypoalbuminaemia such as Cirrhosis and Nephrotic syndrome
5. What are the stages of restorative proctocolectomy?
Investigation and treatment of concurrent abnormalities - Management of hypertension
Thyroidectomy
Neo-rectum is created in a pelvic reservoir - Stage 1 : resection of colon and/or rectum - Stage 2 : Construction of an ileal reservoir - Which is anastamosed to the anus - this is usually covered with a diverting loop ileostomy proximal to the pouch
Surgical treatment is superficial parotidectomy(if superfical lobe of gland only involved) or total parotidectomy with preservation of the facial nerve(if deep lobe of gland or both lobes involved)
6. How do paraumbilical herniae occur?
Increased sweating - Palmar erythema - Thyroid acropachy - Onycholysis - Areas of vitiligo - Pulse - Fine Tremor
Venous disease
Thrombosis during or just after haemodialysis - which may be due to relative hypotension and damage to the intima of the vein - Venous hypertension in the hand causes swelling and ischemia of the fingertips. This should be avoided by the ligation of
Paraumbilical herniae occur around the umbilical scar. They are uncommon before the age of 40 years and can become large. Peristalsis can be observed through the skin when the defect is large. The neck of the sac is often tight and held with a fibrou
7. What are the signs in the mouth of acanthosis nigricans?
The aneurysm is surgically repaired by either an excision bypass -where the popliteal artery is ligated above and below the diseased segment and a graft interposed - or a simple resection and anastamoses without the use of a graft - Acute ischemia ca
Mneumonic : I - CHUM - Infection(frequent) - Calcification - Ulceration - sebaceous Horn formation - Malignant change
Liver Cirrhosis - Inflammatory Bowel disease - Malabsorption - Gastrointestinal lymphoma
Black discolouration of the skin
8. What are the causes of a solitary thyroid nodule?
The primary lesion could be treated with excision with 1cm margin and Moh's staged chemosurgery with histological assessment of margins and electrodessication - for lesions of the eyelids -ears and nasolabial folds. Radiotherapy is applied for unrese
Lymphocyte-mediated destruction of the exocrine glands secondary to B-cell hyper-reactivity and associated loss of suppressor T-Cell activity
An arterial bruit may indicate alcoholic hepatits and carcinoma. A venous hum is associated with portal hypertension and if this is secondary to cirrhosis with a patent umbilical vein(or varices in the falciform ligament) - this is known as the Cruve
Mnemonic : PACT - Prominent nodule in a multinodular goitre - Adenoma - Cyst/Carcinoma/Lymphoma - Thyroiditis
9. What are the cardiac causes of digital clubbing?
An intravenous injection of contrast into the veins in the arm can illustrate the degree of obstruction - A CT Scan of the thorax may demonstrate the cause of the obstruction and the length of the SVC affected
They are known as adiposis dolorosa or Dercum's disease.
Anaesthesia is more complicated because of the increased risk of stroke - In addition - patients with AF may be anticoagulated and if on warfarin - this medication needs to be discontinued prior to elective surgery - Patients with controlled AF may d
Cyanotic congenital heart disease - Infective endocarditis - Atrial myxoma (rare)
10. What are the histological features of seborrhoeic keratosis?
Cardiac failure - Metabolic disorders leading to hypoalbuminaemia such as Cirrhosis and Nephrotic syndrome
Tumour - parotid gland malignancy - Trauma - surgical - accidental e.g facial lacerations
Vascular - Cerebrovascular accident - Tumour - acoustic neuroma - Infection - Meningitis(rarely
Hyperkeratosis - Acanthosis - Hyperplasia of variably pigmented basaloid cells
11. What are the different varieties of Kaposi's sarcoma?
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12. How would you treat a furuncle?
It is due to development inclusion of epidermis along lines of fusion of skin dermatomes and are therefore commonly at: The medial and lateral ends of the eyebrows - The midline of the nose - The midline of the neck and trunk - Suspect if you see a c
An aneurysm is an abnormal dilatation of a blood vessel - A true aneurysm involves all layers of the arterial wall - A false aneurysm follows a partial laceration of the vessel wall causing blood to leak out of the vessel into the surrounding tissues
Non-surgical : risk factor modification such as establishment of good diabetic control and for recurrent infections eradication of nasal carriage of staphylococcus aureus with antiseptics and/or antibiotics such as chlorhexidine and mupirocin - Surgi
A caring and competent approach - A good examination technique - An ability to elicit and draw conclusions from physical signs
13. How can the extent of the obstruction be determined?
The characteristic presentation is insidious with progressive weight-loss and dysphagia - The patient initally hass difficulty swallowing solids and often describes the food getting stuck in the lower part of the oesophagus - They may also describe o
Ductal carcinoma which account for approximately 70% of cancers - Lobular carcinoma which accounts for 20% of cancers - Others such as mucinous -tubular -medullary which accounts for approximately 10% of cancers
An intravenous injection of contrast into the veins in the arm can illustrate the degree of obstruction - A CT Scan of the thorax may demonstrate the cause of the obstruction and the length of the SVC affected
Surgical treatment is superficial parotidectomy(if superfical lobe of gland only involved) or total parotidectomy with preservation of the facial nerve(if deep lobe of gland or both lobes involved)
14. What is jaundice?
The incompetent vein is below the level of the tourniquest
Jaundice is yellow discolouration of the skin and mucous membranes caused by the accumulation of bile pigments.
Increase in size - Ulceration - Change in colour - Irritation - Bleeding - Halo of pigmentation - Satellite nodules - Enlarged local lymph nodes - Evidence of distant spread
For patients who refuse radiation therapy or relapse after an adequate course - pregnant patients or those wishing to become pregnant within 4 years - patients under the age of 40 years and those with nodular or large goitres
15. What investigations would you perform to help you in your diagnosis?
Axillary vein thrombosis - Damage to axillary drainage following surgery such as axillary dissection in breast surgery
Retro-orbital inflammation and lymphocytic infiltration leading to oedema and an increase in retrobulbar orbital contents
Chest x-ray to map the caudal extent of the cystic hygroma - CT/MRI scanning especially if it is complex
Bronchial carcionoma - Chronic suppurative lung disease(abscess -bronchiectasis -cystic fibrosis -empyema) - Fibrosing alveolitis - Mesothelioma
16. What are the complications of a sebaceous cyst?
Mneumonic : I - CHUM - Infection(frequent) - Calcification - Ulceration - sebaceous Horn formation - Malignant change
Mean age is 50 years at presentation(F for fifty)
Some 50% are present at birth and they are thought to represent a congenital abnormality during the evolution of embryonic lymph nodes into the adult type
Coarctation may be associated with:Bicuspid aortic valcves - Aortic stenosis - Aneurysms in the circle of Wilis
17. What are the indications for forming a stoma?
Fine-needle aspiration cytology for diagnosis - MRI to exclude deep-lobe involvement
Mnemonic: DELFT(D) Feeding e.g feeding gastrostomy/jejunostomy - Lavage e.g appendicostomy - Decompression - bypass of an obstructing bowel lesion distal to the stom - Diversion - protection of a distal bowel anastamosis and urinary diversion followi
Psychological and social implications - Haematoma and wound infection - including gas gangrene - Deep vein thrombosis and pulmonary embolus - Phantom limb pain - due to the sensory cortex 'believing' the limb is still present - Skin necrosis
Unilateral total lobectomy and isthmusectomy
18. What is an incisional hernia?
The major risk is embolic stroke(4% per year) which results from thrombus accumulating in an inefficiently contracting left atrium - Emboli can also lodge in the mesenteric vessel - causing intestinal ischaemia - Patients are also at risk from acute
Extrusion of peritoneum and abdominal contents through a weak scar of accidental wound on the abdominal wall - Represents a partial wound dehiscence where the skin remains intact
The mainstay of treatment of ascites is to treat the underlying condition and to place the patient on a weight reduction program - with the help of diuretic - and a low-sodium diet.
Dilatation of normal capillaries - Can be secondary to skin irradiation - Can be part of hereditary haemorrhagic telangiectasia
19. What are the congenital predisposing factors for malignant melanomas?
At two levels:ABO Compatibility - HLA Compatibility
Vascular symptoms - Risk factors for arterial disease - Fitness for surgery
Xeroderma pigmentosum - Dysplastic naevus syndrome - Large congenital naevi - Family history in first-degree relatives
Raynaud's phenomenon - Thrombangiitis obliterans - Takayasu's arteritis
20. How is 'matching' of transplanted kidneys performed?
At two levels:ABO Compatibility - HLA Compatibility
Mneumonic : BEDD - Base - Edge - Describe structure visualized at the base of the ulcer - Discharge
Extrahepatic : caused by increased resistance to flow e.g : portal or splenic vein thrombosis - Intrahepatic : due to cirrhosis - right heart failure - sarcoidosis and schistosomiasis(the latter is the most important cause worldwide - ova of the para
Ultrasound will show: Presence of underlying liver disease - Degree of dilatation of the common bile duct(>8mm is abnormal) - Presence of gall stones - Presence of lymphadenopathy or a pancreatic mass - CT Scan - ERCP - MRCP
21. What is the commonest cause of unilateral ankle oedema?
Coarctation may be associated with:Bicuspid aortic valcves - Aortic stenosis - Aneurysms in the circle of Wilis
Venous disease
An absolute pressure of less than 50mmHg
The pain is caused by a reduced blood supply to the distal aspects of the limb. The pain gets worse at night because the perfusion of the limb is further reduced when the patient is lying down - This is due to: Decreased cardiac output at night - Red
22. What is the pathogenesis of an acquired dermoid cyst?
Occurs most often on the legs of women and the backs of men - Red -white and blue in colour - Irregular edge - Usually palpable but thin
It is due to forced implantation of skin into subcutaneous tissues following an injury. Normally found in areas of the body prone to injury such as fingers. Suspect if you see an adult in exam.
Truelove classification - Gastrointestinal symptoms : passage of bloody stools more than 6 times per day - Systemic signs : tachycardia and pyrexia - Laboratory findings : anaemia and CRP more than 30
Mnemonic : L-SHAPE - Lymph node/Lipoma of the cord - Sapheno-varix/Skin lesions(sebaceous cyst/lipoma -etc) - Hernia - inguinal or femoral - Aneurysmal dilatation of the femoral artery - Psoas abscess or bursa - Ectopic/undescended testes
23. What are the features of a femoral hernia?
Found below the inguinal ligament - Usually not reducible - Commoner in women - but inguinal herniae are still commoner in women than femoral hernias. Risk of strangulation is high - Cough impulse usually absent
Open lymph node excision biopsy - Block dissection of the neck - Radical Neck Dissection
It is important to exclude malignant tumours such as: Malignant melanoma - Basal cell carcinoma
10% per year
24. With which conditions would an ascitic exudate be expected?
Cardiac and respiratory disease should be controlled first - Other risk-factors should be optimized - Preoperative weight loss should be encourage
A blepharoplasty can be performed where excess skin and fat are removed.
Cirrhosis - Malignancy - Lymphatic rupture or damage
Ligation of the incompetent SFJ or SPJ with stripping of the involved vein and stab avulsion of varicosities - Ligation of incompetent perforating vessels - Subcutaneous endoscopic perforator surgery
25. What is the differential diagnosis in basal cell carcinoma?
Duration and change in size - Cosmetic symptoms - Discomfort during swallowing/dysphagia - Dyspnoea - Hoarseness - Pain
The two main differential diagnoses to consider are; Benign - keratoacanthoma - especially if it is sloughing at its centre - Malignant -Squamous cell carcinoma - particularly the nodulo-ulcerative type with a rolled edge
Are you having difficulties swallowing liquids - or solids - or both? - Did the problem start suddenly or was the onset gradual? - Do you ever regurgitate food? - Can you eat a full meal? - How long have you had this problem for? - Where does the foo
SPRUE - Site of enlargement - from the left costal margin towards the umbilicus - Percussion note - dull - Respiration movement - it descends - Unable to get above it or ballot it(differentiating it from the kidney) - Edge - a notch may be palpable o
26. What are the non-surgical treatment options for an incisional hernia?
A papilloma is an over-growth of all layers of the skin with a central vascular core. They are increasingly common with age.
Haemorrhage - Hoarseness - Hyperthyroidism
Below Knee - Above Knee
Use of truss or corset - Weight loss and management of other risk factors
27. What are the characteristics that suggest malignancy in skin lesions?
Increase in size - Ulceration - Change in colour - Irritation - Bleeding - Halo of pigmentation - Satellite nodules - Enlarged local lymph nodes - Evidence of distant spread
Arises in a lentigo maligna - Occurs most often on the face or dorsum of the hands and forearms - Underlying lesion is flat and brown-to-black in colour with an irregular outline - Malignant area in the lesion is usually thicker - and darker in colou
Barium swallow may be useful - If diagnosis is in doubt - endoscopy with biopsies and brushings should be performed to exclude a carcinoma - Physiological function could be tested using 24-hour oesophageal pH studies to exclude reflux and manometry
It arises de novo
28. What is the pathogenesis of umbilical herniae?
These are due to a defect through the linea alba adjacent to the umbilicus and usually due to obesity stretching the fibres.
Neuropathic - 45 to 60% of ulcers - Ischaemic due to peripheral occlusive arterial disaese - 10% of ulcers - Mixed neuroischaemic - 25-45% of ulcers
The major risk is embolic stroke(4% per year) which results from thrombus accumulating in an inefficiently contracting left atrium - Emboli can also lodge in the mesenteric vessel - causing intestinal ischaemia - Patients are also at risk from acute
Well-differentiated - Myxoid and round cell - Pleomorphic liposarcoma
29. What conditions increase the risk of developing pressure sores?
A hypervascular mas displacing the bifurcation of the carotid arteries
Unhealthy -necrotic and infected tissue - Irradiated tissue - Exposed cortical bone without periosteum - Tendon without peritendon - Cartilage without perichondrium
Immobility and prolonged bed-rest are the most important factors - particulary secondary to conditions such as: Cardiopulmonary disease - Trauma - Neurological disease such as paraplegia - Bone and joint disease - Prolonged operative procedures - And
Unilateral - Bilateral
30. What are the vital points to be taken into consideration when examining the neck?
Arising from the skin and soft tissues - sebaceous cysts -sarcoma -lipoma -epigastric hernia - Arising from the gastrointestinal tract - carcinoma of the stomach -hepatomegaly -pancreatic ca - pancreatic pseudocyst - Arising from the vascular system
Depends on local guidelines but essentially: Pneumococcal vaccine - Haemophilus influenzae type B vaccine - Meningococcal vaccine - Annual 'flu' vaccine - Consideration for lifelong penicillin or penicillin as required when infection present - Warn a
Inspect - Protrusion of the tongue - Swallowing - Palpate(from the back) - Continue Accordingly(Neck Decision Circle)
Non-surgical : regression is uncommon - except those arising in pregnancy and so they are best treated surgically - though occassionally a silver nitrate stick can be attempted - Surgical : curettage with diathermy of the base or complete excision b
31. In the tourniquet test - What do rapid filling of the collapsed veins below the tourniquet indicate?
Parafollicular C Cells
Congenital : Cystic disease - horseshoe kidney - hypertrophic single kidney - Acquired : Diseases specific to the kidney such as solitary cysts - tumours - hydronephrosis - pyonephrosis - perinephric abscess and renal vein thrombosis and diseases as
The incompetent vein is below the level of the tourniquest
Undermined edge - Violaceous - Necrotic ulcer with hypertrophic margins
32. What are the early side-effects of radiotherapy?
General : malaise -fatigue - loss of appetite - nausea and vomiting - Skin : as above - Bone marrow suppression : particular if irradiation to the pelvis and long bones - Gastrointestinal : diarrhoea
Non-adherent dressing over ulcer plus wool bandage - Crepe bandage - Blue-line bandage - Adhesive bandage to prevent the other layers from slipping
Regular skin inspection - Frequent turning of immobile patients( 2 to 4 hourly) - Massage - Toileting - The use of special mattresses and cushion which redistribute the pressure on at-risk areas
Inflammation : inflammatory bowel disease -especially Crohn's disease - Diverticular disease - tuberculosis - Malignancy : Often following spontaneous rupture and abscess formation by the tumour - Radiotherapy : Pelvic irradiation can damage the inte
33. What kinds of analgesia would be appropriate for this patient?
Donor renal artery is anastamosed to either the internal or external iliac artery - The donor renal vein is anastamosed to the external iliac vein - The ureter is anastamosed seperately to the patient's bladder - The renal pelvis the most anterior st
Ischaemic ulcers can be extremely painful and even removing the bandages from around the ulcer can cause pain that lasts for several hours. The analgesic ladder would be appropriate in this situation starting from simple oral agents -stronger oral ag
Other risk factors and cardiovascular disease elsewhere would be excluded and the neck imaged with a duplex scan or occasionally on intravenous digital subtraction angiogram
Recurrence of the cyst - Developement of a chronic -discharging sinus
34. What should you mention when considering the management of a surgical patient?
Excess accumulation of fluid in the processus vaginalis.
The aneurysm is surgically repaired by either an excision bypass -where the popliteal artery is ligated above and below the diseased segment and a graft interposed - or a simple resection and anastamoses without the use of a graft - Acute ischemia ca
History - Examination - Special Investigations - Treatment
Bright-red raised strawberry-like lesion - Present from birth - but 60% undergo spontaneous resolution by the age of 3 years - Only treated if obscuring a visual field or spontaneous resolution not occurring.
35. What are the main points that doctors are looking for during the Surgical OSCEs?
Third cranial nerve palsy - complete ptosis - Horner's syndrome - partial ptosis - Syphillis
According to site - contents and if it is random or axial. When it comes to site - you consider where it is local or distant(Which is also known as a free flap). You have to also consider the contents which can contain any tissue capable of transfer
A pyogenic granuloma is a rapidly growing capillary haemangioma whic usually measures less than 1cm in diameter
A caring and competent approach - A good examination technique - An ability to elicit and draw conclusions from physical signs
36. What are the treatment options available for Squamous Cell Carcinoma of the skin?
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37. What is the risk of rupture for an aneurysm more than 5.5cm?
Reflux Trahere transplantation - Kistner's operation - Obstruction: Palma Operation - Warren Bypass
10% per year
Causes may be classified as the 3 Ps: Physiological - Pathological - decreased androgens - androgen resistance - increased secretion -increased peripheral aromatization - Potions that is drugs such as recreational drugs - GI drugs - cardiovascular dr
Intra-abdominal abscesses should be drained - Colonic defunctioning using a loop ileostomy may be needed for patients who have failed medical therapy - Occasionally a subtotal colectomy and permanent ileostomy may be needed - Pouch surgery is general
38. What are the rare causes of digital clubbing?
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39. What do you know about the epidemiology of hypertrophic scars?
Palomo operation
Neoplasia(benign -malignant -lymphoma and leukaemia) - Stone(sialolithiasis) - Infection/inflammation(mumps -acute sialadenitis -chronic recurrent sialadenitis -HIV - salivary gland disease) - Autoimmune(sjogren's syndrome) - Infiltration(sarcoidosis
For patients who refuse radiation therapy or relapse after an adequate course - pregnant patients or those wishing to become pregnant within 4 years - patients under the age of 40 years and those with nodular or large goitres
Affect any age - Males = females - All races may be affected
40. What are the complications of atrial fibrillation?
Bilateral subtotal thyroidectomy leaving approximately 4g of thyroid tissue on each side of the trachea
Symptomatic carotid stenosis of more than 70% - Trials demonstrated that for patients with severe stenosis surgery reduce the relative risk of disabling stroke by 48%
Triple assessment which consists of: Clinical : history and physical examination - Radiological : ultrasound or mammography - Pathological : cytology(fine-needle aspiration) or histological(tru-cut biopsy)
The major risk is embolic stroke(4% per year) which results from thrombus accumulating in an inefficiently contracting left atrium - Emboli can also lodge in the mesenteric vessel - causing intestinal ischaemia - Patients are also at risk from acute
41. What are the causes of splenomegaly
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42. How do carcinomas of the oesophagus present?
Schirmer's test for xeropthalmia - Slit-lamp examination of the cornea - Lip biopsy for histological examination of the minor salivary glands
Blood Tests:FBC - to look for raised white cell count in infection - Liver function - to look out for hypoalbuminaemia or evidence of hepatic dysfunction - Clotting - functional hepatic impairment - CRP/ESR - increased in infection/inflammation and i
The characteristic presentation is insidious with progressive weight-loss and dysphagia - The patient initally hass difficulty swallowing solids and often describes the food getting stuck in the lower part of the oesophagus - They may also describe o
Early mobilization is important - They should keep the area clean and wash carefully -especially after the clip/sutures have been removed - They are able to bathe immediately - They may need to be off work for 6 weeks if their job involves heavy lift
43. What symptoms - a patient with an epigastric hernia might have complained of at presentation?
Epigastric pain - which may increase after meals - May be acutely painful after physical exercise - Nausea and early satiety - Reflux and non-ulcer dyspepsia
Peripheral neuropathy has several effects: Slowly progressive sensory loss - with numbness and tingling of the feet and sometimes also hands. The sensory loss is often glove-and-stocking in distribution and may also be associated with motor impairmen
Simple mastectomy - Modified radical mastectomy(patey) - Radical mastectomy(Halsted mastectomy) - Extended radical mastectomy
It is due to forced implantation of skin into subcutaneous tissues following an injury. Normally found in areas of the body prone to injury such as fingers. Suspect if you see an adult in exam.
44. What are the other types of arteriovenous fistula?
A furuncle results from infection of hair follicles with Staphylococcus aureus
Congenital - Multiple arteriovenous fistulae - Traumatic
Ischaemic ulcers can be extremely painful and even removing the bandages from around the ulcer can cause pain that lasts for several hours. The analgesic ladder would be appropriate in this situation starting from simple oral agents -stronger oral ag
Haemorrhage - Hoarseness - Hyperthyroidism
45. What is the adequate treatment for minimal lesion(less than 1cm) in thyroid cancer?
Unilateral total lobectomy and isthmusectomy
Surgical excision with preoperative embolizatoin if the tumour is large - Ultrasonic surgical dissection may also be used - Radiotherapy is used for patients unfit for surgery or for large tumours
Gangrene is the result of irreversible tissue necrosis and has a number of causes: Diabetes - Embolus and thrombosis - Raynaud's syndrome - Thrombangiitis obliterans - Ergot poisoning - Vessel injury secondary to extreme cold -heat -trauma or pressur
Mayo's 'vest-over-pants' operation is the most widely accepted repair for these herniae
46. Assuming a patient has obstructive jaundice - how should this patient be investigated?
Risk factor modification - stopping smoking - good diabetic and hypertensive control and optimized serum lipid levels - Symptom modification - avoidance of drugs which might worsen symptoms - commencement of low-dose aspirin daily -IV prostaglandins
Urine should be tested for raised bilirubin - Full Blood Count - Evidence of anemia in GI malignancies or associated infection - Renal function - any evidence for hepatorenal syndrome - Liver Function Tests -Clotting - functional assessment of hepati
A carbuncle is an extensive infection of hair follicles by the same organism with involvement of adjacent follicles and development of draining sinuses. It is associated with diabetes and is treated with a combination of systemic antibiotics and surg
Excision of a single lobe of the lung
47. It is know that the pulses are preserved in the diabetic - why is this?
Investigation and treatment of concurrent abnormalities - Management of hypertension
Calcification of the walls of the vessel preserves the pulses until late in the natural history of disease - and prevent the sphygmomanometer from compressing the vessels. This tends to lead to an abnormally(and reassuringly) high ankle brachial pres
Non-surgical - same as in incisional hernia with possible investigations : LFTs - H.pylori serology and Upper GI endoscopy
Those related to anaesthesia
48. What is the most common type of malignant melanoma?
Superficial spreading at 70% of malignant melanomas
Definition - Incidence - Sex - Geography - Aetiology - Pathogenesis - Macroscopic Pathology - Microscopic Pathology - Prognosis - Symptoms - Signs - Investigations - Treatment
Ischaemic ulcers can be extremely painful and even removing the bandages from around the ulcer can cause pain that lasts for several hours. The analgesic ladder would be appropriate in this situation starting from simple oral agents -stronger oral ag
Complications include cosmetic symptoms but important problems are encountered in the perinatal period: Before delivery it may obstruct delivery - After delivery : respiratory obstruction and obstruction of swallowing
49. Describe the vascular supply of the transplanted kidney?
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50. What is the differential diagnosis of swollen legs?
Central causes - RHF - hypoalbuminaemia -nephrotic syndrome and hypothyroidism - Peripheral - venous disease such as DVT - Klippel-Trenaunay syndrome - chronic venous insufficiency or post-phlebitic limb - Rare - angio-oedema - arteriovenous malforma
Haemorrhage - Hoarseness - Hyperthyroidism
Congenital ptosis - Myopathies - Syphillis
Causes may be classified as the 3 Ps: Physiological - Pathological - decreased androgens - androgen resistance - increased secretion -increased peripheral aromatization - Potions that is drugs such as recreational drugs - GI drugs - cardiovascular dr