Epidermoid cysts are benign lesions, characterized by cystic spaces
lined by simple squamous epithelium. Head and neck constitute ~7% of
all cases of epidermoid and dermoid cysts. There is often a
diagnostic dilemma with the more common cystic lesions of this
region. Historically, epidermoid cysts have been referred to by
various terms, including follicular infundibular cysts, epidermal
cysts, and epidermal inclusion cysts. Report of cases in the
periauricular regions is very uncommon.
This is a retrospective case-series study of histologically-
confirmed epidermoid or dermoid cysts in the ear region during the
past 10 years. Total 15 cases consisted of 14 epidermoid cysts and
only 1 dermoid cyst. There were 11 males and 4 females (mean age of
37.8¡¾16.8 years-old). Right side was 7 cases and left was 8. The
cyst was located in the lobule in 3 cases, in the cartilaginous ear
canal in 4 cases, in the preauricular area in 3 cases, and in the
postauricular area in 5 cases.
We described clinical characteristics of our cases and reviewed the
literature. |