Proliferating trichilemmal cyst
Presentation
Multiple scalp rounded swellings
Patient Data
Age: 20 years
Gender: Male
From the case:
Proliferating trichilemmal cyst
CT
CT brain
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Axial non-contrast
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.
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