Question
A 79-year-old woman with a giant, cystic lesion of the scalp stated that a smaller nodule that had been at the site for 60 years had suddenly enlarged over the preceding 2 months as shown in the picture below.
An excisional biopsy specimen showed the histologic features of a circumscribed pushing border exhibiting an epidermal connection.Most probable diagnosis is?
A. Cock’s peculiar tumor.
B. Sebaceous cyst.
C. Proliferating pilar cyst.
D. Both A & C.
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