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Thursday, 7 March 2013

Surgery MCQs: Pyogenic liver abscess

Q. The standard of care for management of pyogenic liver abscess today is-
a. Antibiotics
b. Open surgery and antibiotics
c. Laparoscopy and antibiotics
d. Percutaneous drainage and antibiotics

Answer D
1. With availability of US and CT scan, the role of surgery in treatment of liver abscess is obsolete
2. Percutaneous drainage is now the standard of care
3. Surgery is undertaken for multiloculated thick wall abscess, which cannot be percutaneously drained.

Embryology MCQs: Meckel diverticulum

Q. Meckel diverticulum is a vestigal remnant of the-
a. Urachus
b. Umbilical artery
c. Omphalomesenteric duct
d. Round ligament

Answer: C
1. Meckel diverticulum is a vestigal remnant of the omphalomesenteric duct
2. It is a true diverticulum and involves all three layers of the intestine

Pathology MCQs: Meckel diverticulum

Q. The most common heterotopic tissue found in meckel diverticulum is-
a. Pancreas
b. Gastric
c. Uterine
d. Accrine glands
e. Skin

Answer: B
1. Heterotopic tissue is often found in meckel diverticulum
2. In more than 50% of cases, the tissue is gastric mucosa

Medicine MCQs: Acute glomerular nephritis

Q. Acute glomerulonephritis is common after infection with:
A. Pseudomonas
B. Group A streptococci
C. Listeria
D. Plasmodium
E. Staphylococcus
F. Mycobacteria

Answer B
1. Acute glomerulonephritis is caused by group A strep after a pharyngitis
2. Antigen and antibody usually precipitate in the kidney leading to a nephritic picture.

Surgery MCQs: Bilateral neck mass

Q. Which neck malignancy often presents with a bilateral neck mass?
a. Squamous cell cancer of tonsils
b. Carcinoma of the tongue
c. Lymphoma
d. Nasopharyngeal cancer

Answer C
1. Lymphoma can present with bilateral neck masses
2. The patient may present with fevers, weight loss, night sweats or may be completely asymptomatic
3. Tissue biopsy is required to make a diagnosis of lymphoma.

Medicine MCQs: collagen vascular disorder

Q. Which collagen vascular disorder is associated with destruction of exocrine glands and parotid gland enlargement?
A. Polyarteritis nodosa
B. Sjogren syndrome
C. Sarcoidosis
D. CREST syndrome

Answer B
1. Sjogren syndrome is an immunologic disorder characterized by progressive destruction of exocrine glands
2. It leads to dryness of the eyes and oral mucosa
3. In the early stages of the disease, both parotids become enlarged from the cellular infiltration
4. Treatment is supportive and use of lubricating agents.

Pathology MCQs: Pleomorphic adenoma

Q. Pleomorphic adenoma is most likely to be found in what organ?
a. Parotid
b. Liver
c. Thyroid
d. Tonsils

Answer: A
1. Pleomorphic adenoma is the most common benign tumor of the parotid gland. It always presents as a unilateral mass.