This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
Cock&;s peculiar tumor is 
Select and explain. 
A. Basal cell CA, B. Squamous cell CA, C. Ulcerated sebaceous cyst, D. Cylindroma
C: Ulcerated sebaceous cyst
Answer: C: Ulcerated sebaceous cyst 
Explanation: .cocks peculiar tumour is actually a complication of sebaceous cyst when sebaceous cyst ulcerates excessive granulation tissue forms resembling fungating epithelioma and this iscalled cock&;s peculiar tumour