Differential diagnosis of mass in right iliac fossa

Q) Patient with generalized ill health and pyrexia has a mass in the right iliac fossa with a history of blood-stained mucoid diarrheia? Most common etiology in this case would be ? 

a) Carcinoma

b) TB

c) Amoeboma

d) Lymphoma

More questions on general surgery tropical infections

Ans  c

Amoeboma is partially treated amoebic infection of the caecum

It mostly presents as a mass in RIF and causes confusion with malignancy.

Such a patient is highly unlikely to have a carcinoma because altered bowel habit is not a feature of right-sided colonic carcinoma.

Ref Bailey page 58

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