Proliferating trichilemmal cyst

Case contributed by Dr Mostafa El-Feky


Multiple scalp rounded swellings

Patient Data

Age: 20 years
Gender: Male

CT brain

Multiple partially calcified mass lesions in the subcutaneous tissues of the scalp (hair follicles-bearing layer).

Case Discussion

A trichilemmal cyst, also known as pilar tumor, is a common cyst that forms from a hair follicle. They are most often found on the scalp. The cysts are smooth, mobile and filled with keratin, a protein component found in hair, nails, and skin. In this case, the keratin has calcified.

PlayAdd to Share

Case information

rID: 52409
Published: 21st Apr 2017
Last edited: 5th Jun 2020
System: Head & Neck
Inclusion in quiz mode: Included

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.