A Case of Large Dermoid Cyst

ABSTRACT

The authors describe a case of large dermoid cyst of the scalp which removed surgically and cosmetically. Dermoid cyst is derived from epiblastic cells predestined to form skin which become detached from their neighbours and included in mesenchyme at about third to the fifth week of feral life, when the neural tube is closing. The contents of the cyst are thus mixtures of keratin, sebum, and hair, according to the proportionate development of these elements. It is usually a single tumor and may develop almost anywhere in the subcutaneous tissue, being of variable size.