Proliferating trichilemmal cyst

Proliferating tricholemmal (pilar) cyst

Proliferating trichilemmal cysts (also known as a "Pilar tumor", "Proliferating follicular cystic neoplasm", "Proliferating pilar tumor", and "Proliferating trichilemmal tumor"^[1]) are a cutaneous condition characterized by proliferations of squamous cells forming scroll-like structures.^[1]^[2]^:678

References

1 2 Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 1-4160-2999-0.
↑ James, William D.; Berger, Timothy G.; et al. (2006). Andrews' Diseases of the Skin: Clinical Dermatology. Saunders Elsevier. ISBN 0-7216-2921-0.

Tumors: Skin neoplasm, skin appendages / Adnexal and skin appendage (C44.L40–L68/D23.L15–49, 173/216)

Glands

Sweat gland

Eccrine:	Papillary eccrine adenoma Eccrine carcinoma Eccrine nevus Syringofibroadenoma Spiradenoma

Apocrine:	Cylindroma Dermal cylindroma Syringocystadenoma papilliferum Papillary hidradenoma Hidrocystoma Apocrine gland carcinoma Apocrine nevus

Eccrine/apocrine:	Syringoma Hidradenoma or Acrospiroma/Hidradenocarcinoma Ceruminous adenoma

Sebaceous gland

Hair

Pilomatricoma/Malignant pilomatricoma Trichoepithelioma Multiple familial trichoepithelioma Solitary trichoepithelioma Desmoplastic trichoepithelioma Generalized trichoepithelioma Trichodiscoma Trichoblastoma Fibrofolliculoma Trichilemmoma Trichilemmal carcinoma Proliferating trichilemmal cyst Giant solitary trichoepithelioma Trichoadenoma Trichofolliculoma Dilated pore

Isthmicoma Fibrofolliculoma Perifollicular fibroma Birt–Hogg–Dubé syndrome

Hamartoma:	Basaloid follicular hamartoma Folliculosebaceous cystic hamartoma Folliculosebaceous-apocrine hamartoma

Nails

Neoplasms of the nailbed

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Proliferating trichilemmal cyst

See also

References