A 28-year-old man presented to the emergency department complaining of anal and lower-back pain for 2 days. Simple analgesics weren’t beneficial for this patient. The pain was progressively getting worse and finding it uncomfortable to walk or sit down. He is otherwise fit and well and smokes 10 cigarettes a day. Examination Inspection of the anus revealed a 3cm x 3 cm swelling at the anal margin.
The swelling was warm, exquisitely tender and fluctuant. There was no other obvious abnormality. What is the probable diagnosis? Click here for the answer *This patient case is from Docplexus Editorial Team for educative purpose only. Source: 100 cases of surgery
