Trichoepithelioma
Trichoepithelioma
Trichoepithelioma (pronounced trik-oh-ep-uh-thee-lee-oh-muh) is a benign tumor that originates from the hair follicle. The term is derived from the Greek words 'trichos' meaning hair, 'epithelion' meaning epithelium, and 'oma' meaning tumor.
Definition
Trichoepithelioma is a rare, benign skin tumor that originates from the outer root sheath of the hair follicle. It is characterized by the formation of small, firm, skin-colored papules that are primarily located on the face.
Types
There are two main types of trichoepithelioma: solitary and multiple.
- Solitary Trichoepithelioma - This type presents as a single lesion, usually on the face. It can occur at any age and does not have a genetic component.
- Multiple Trichoepithelioma - Also known as Brooke-Spiegler Syndrome, this type is characterized by multiple lesions that are usually present at birth or develop during puberty. It is an autosomal dominant condition.
Symptoms
The primary symptom of trichoepithelioma is the presence of small, skin-colored or pink papules on the face. These papules are typically less than 1 cm in diameter and are often mistaken for acne or basal cell carcinoma.
Diagnosis
Diagnosis of trichoepithelioma is typically made through a biopsy of the lesion. Histologically, trichoepithelioma is characterized by nests of basaloid cells, horn cysts, and a stroma that mimics the dermal papillae of the hair follicle.
Treatment
Treatment for trichoepithelioma is typically surgical removal of the lesion. Other treatment options include cryotherapy, laser therapy, and radiotherapy.
See Also
External links
- Medical encyclopedia article on Trichoepithelioma
- Wikipedia's article - Trichoepithelioma
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