pilomatricoma


Also found in: Acronyms.

pilomatricoma

 [pi″lo-ma-trĭ-ko´mah]
a solitary benign calcifying tumor of hair follicle origin manifested as a sharply circumscribed, firm, intracutaneous nodule, usually on the face, neck, or upper limb and presenting before age 20. Histological features include a fibrous stroma surrounding nests of basophilic cells and ghost, or shadow, cells.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
References in periodicals archive ?
Pilomatricoma (formerly known as pilomatrixoma or calcifying epithelioma of Malherbe) is a benign calcifying tumor arising from the hair matrices with the cheek and preauricular regions being the most frequently affected sites.
Proliferating pilomatricoma. A histopathologic simulator of matrical carcinoma.
Pilomatricoma: a review of six pediatric cases with nine lesions.
Malignant pilomatricoma (MPM) is the rare malignant counterpart, and as of 2014, only 80 cases were reported in the literature.
In our institutional study, clear cell hidradenoma is the commonest tumor with sweat gland differentiation, while pilomatricoma is the most common type of hair follicle tumor.
Pilomatricoma is a painless, firm, slow-growing, benign skin neoplasm that derives from hair follicle matrix cells.
The findings were considered consistent with a pilomatricoma on re-examination.
Pilomatricoma is a benign and often misdiagnosed tumor arising from hair matrix cells.
Although these lesions may resemble dermoid cysts or epidermal inclusion cysts, the diagnosis in this case was pilomatricoma, distinguished by its bluish color and the presence of the teeter-totter sign.
Also, lupus erythematosus, hidradenitis suppurativa, cylindroma, pilomatricoma and basal cell carcinoma may show secondary amyloid deposits.