Trichoadenoma
Trichoadenoma
Trichoadenoma (pronounced: trik-oh-aden-oh-ma) is a rare benign tumor that originates from the hair follicle. The term is derived from the Greek words "trichos" meaning hair, "aden" meaning gland, and "oma" meaning tumor.
Etymology
The term "Trichoadenoma" is derived from three Greek words: "trichos" (τρίχα), meaning hair; "aden" (ἀδένας), meaning gland; and "oma" (ὄμμα), meaning tumor or mass. Thus, the term literally translates to "hair gland tumor."
Description
Trichoadenoma is a benign neoplasm that originates from the outer root sheath of the hair follicle. It was first described by Nikolowski in 1958. The tumor is usually solitary and presents as a small, firm, skin-colored or slightly pigmented nodule. It is most commonly found on the face, particularly the nose, but can occur anywhere on the body.
Diagnosis
Diagnosis of Trichoadenoma is typically made through a biopsy of the lesion. Histologically, the tumor is characterized by multiple, well-circumscribed, lobulated masses of basaloid cells in the dermis. These cells resemble the cells of the outer root sheath of the hair follicle.
Treatment
Treatment for Trichoadenoma typically involves surgical excision of the tumor. Because the tumor is benign, it does not spread to other parts of the body, and removal of the tumor is usually curative.
Related Terms
- Neoplasm: An abnormal growth of tissue, which can be benign or malignant.
- Tumor: An abnormal mass of tissue that results when cells divide more than they should or do not die when they should.
- Biopsy: A procedure that involves taking a small sample of tissue for examination under a microscope.
- Benign: Not cancerous. Benign tumors may grow larger but do not spread to other parts of the body.
External links
- Medical encyclopedia article on Trichoadenoma
- Wikipedia's article - Trichoadenoma
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