Cock's peculiar tumor is -
Rodent ulcer of nose
Local osteomyelitis of cranium
Chronic infection of sebaceous cyst
Keratin horn
Ans. is 'c' i.e., Chronic infection of sebaceous cyst o Cocks peculiar tumour is actually a complication of sebaceous cyst. When the sebaceous cyst of the scalp ulcerates excessive granulation tissue forms resembling fungating epithelioma.This is called cock's peculiar tumour.
Plastic & Reconstructive Surgery