An epidermoid cyst
is a benign cyst
, developed out of ectodermal
, it is made of a thin layer of squamous epithelium
It is very common for women on the major or minor labia.
The more general term for an Epidermal Inclusion Cyst (which strictly means implantation of epidermal
elements into the dermis
), Epidermoid cyst includes cysts originating from the infundibular
portion of the hair follicle
The majority of Epidermal Inclusion Cysts do in fact originate from the infundibular portion of the hair follicle thus explaining the interchangeable, yet technically incorrect, use of these two terms.
These cysts are caused by a bacterium
and form into a pimple
-like shape. They are also seen in Gardner's syndrome
on the head and neck.
For some individuals, it doesn't even irritate. For others, it can hurt and when touched, it can release pus
In contrast to pilar cysts, epidermoid cysts usually present on parts of the body with relatively little hair.
Although they are not malignant, it is possible for malignant tumors to arise from them.
, FLAIR hyperintens
Cysts can be removed by excision