Table 1.

Differential diagnoses of subcutaneous epidermoid cysts

Entity	Remarks
Dermoid cysts	Ectodermal cysts may contain squamous epithelium and dermal contents
Trichilemmal cysts	Often on the scalp, family history, multiple, trichilemmal keratinisation
Pilomatricoma	Common in children, mostly head-and-neck region, hard, painless
Lipoma	Common, often soft, composed of mature adipocytes with a fibrous capsule