Proliferating trichilemmal cyst
Proliferating Trichilemmal Cyst
Proliferating Trichilemmal Cyst (pronunciation: pro-lif-er-ating tri-chi-lem-mal cyst), also known as PTC, is a rare type of hair follicle tumor that originates from the outer root sheath of the hair follicle.
Etymology
The term "Proliferating Trichilemmal Cyst" is derived from the words "proliferating" (meaning multiplying or increasing rapidly), "trichilemmal" (referring to the outermost layer of the hair follicle), and "cyst" (a sac-like pocket of membranous tissue that contains fluid, air, or other substances).
Description
PTCs are usually benign, but they can occasionally become malignant. They are most commonly found on the scalp of elderly women, but can occur in other areas of the body. The cysts are often multiple and can grow to a large size. They are characterized by rapid growth and a tendency to recur after removal.
Symptoms
Symptoms of PTCs include a solitary, well-circumscribed, mobile, and painless mass. The mass may be covered by normal or slightly atrophic skin. In some cases, the mass may ulcerate and become painful.
Diagnosis
Diagnosis of PTCs is typically made through a combination of clinical examination and histopathological analysis. The histopathological features of PTCs include lobules of squamous epithelium with clear cells, and a dense, eosinophilic, and hyaline-like cuticle that resembles the inner root sheath of the hair follicle.
Treatment
Treatment for PTCs typically involves surgical excision. In cases where the cysts are malignant, additional treatments such as radiation therapy or chemotherapy may be required.
Related Terms
- Cyst
- Hair Follicle
- Tumor
- Squamous Epithelium
- Histopathology
- Surgical Excision
- Radiation Therapy
- Chemotherapy
External links
- Medical encyclopedia article on Proliferating trichilemmal cyst
- Wikipedia's article - Proliferating trichilemmal cyst
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