Surgery When sebaceous cyst of the scalp is ulcerated, excessive granulation tissue forms fungating epithelioma is known as: A Cock's peculiar tumour. B Sebaceous horn. C Sequestration dermoid. D Terstomatous dermoid. 💡 Explanation When sebaceous cyst of the scalp is ulcerated, excessive granulation tissue forms fungating epithelioma is known as: ✓ Correct Answer: A. Cock's peculiar tumour.