Trichoepithelioma

Trichoepithelioma is a rare benign tumor that originates from the hair follicle. It is also known as Brooke-Fordyce trichoepitheliomas.

Classification

Trichoepitheliomas are classified into three types: solitary trichoepithelioma, multiple familial trichoepithelioma, and desmoplastic trichoepithelioma.

Solitary Trichoepithelioma

Solitary Trichoepithelioma is a single, small, skin-colored papule that usually appears on the face. It is not associated with any syndrome and does not have a familial tendency.

Multiple Familial Trichoepithelioma

Multiple Familial Trichoepithelioma is characterized by the presence of multiple skin-colored papules on the face. It is an autosomal dominant condition that usually appears during adolescence.

Desmoplastic Trichoepithelioma

Desmoplastic Trichoepithelioma is a rare variant that presents as a solitary, indurated plaque on the face. It is distinguished by its desmoplastic stroma on histology.

Symptoms

The main symptom of trichoepithelioma is the presence of small, skin-colored papules on the face. These papules are usually asymptomatic, but they can cause cosmetic concern.

Diagnosis

The diagnosis of trichoepithelioma is usually made by biopsy and histological examination. The histology shows nests of basaloid cells with peripheral palisading and horn cysts.

Treatment

The treatment of trichoepithelioma is usually surgical excision. Other treatment options include cryotherapy, laser therapy, and radiotherapy.

See also

• Basal-cell carcinoma
• Hair follicle
• Skin tumor

References

Trichoepithelioma Resources
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