trichofolliculoma

trich·o·fol·lic·u·lo·ma

(trik'ō-fol-ik'yū-lō'mă),
A usually solitary tumor or hamartoma in which multiple abortive hair follicles open into a central cyst or space opening on the skin surface.
[tricho- + L. folliculus, fountain, spring, + G. -oma, tumor]

trichofolliculoma

/tricho·fol·lic·u·lo·ma/ (-fŏ-lik″u-lo´mah) a benign usually solitary dome-shaped nodular lesion with a central pore that frequently contains a woolly hair-like tuft; usually occurring on the head or neck and derived from a hair follicle.

trichofolliculoma

An uncommon hamartoma arising in the hair follicles, which occurs in adults, doesn’t undergo malignant changes and is managed with complete excision.
 
DiffDx
Basal cell carcinoma, dilated pore of Winer, epidermal inclusion cyst, trichoepithelioma.

trichofolliculoma

a benign neoplasm of the hair follicle with a large central follicle and numerous smaller follicle-like structures radiating from it; occur in dogs where they appear as firm nodules which may have tufts of hair protruding.
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References in periodicals archive ?
To date, vulvar trichofolliculoma in the literature is limited to a single series citing 3 cases.
Trichofolliculoma of the vulva associated with vulvar intraepithelial neoplasia: report of three cases and review of the literature.
This finding is characteristic of a trichofolliculoma.
The typical pathologic feature of a trichofolliculoma contains a large cystic space that is lined by squamous epithelium and contains keratin.
Noting an association between trichofolliculoma and acantholytic dyskeratosis expands the differential diagnosis of this important marker.
Correlation of the lesion's clinical morphology and microscopic features established a diagnosis of trichofolliculoma with incidental focal acantholytic dyskeratosis.
Key Words: acantholytic, dyskeratosis, histopathology, trichofolliculoma
4) To the best of our knowledge, this is the first description of a trichofolliculoma with incidental focal acantholytic dyskeratosis.
A diagnosis of trichofolliculoma with incidental focal acantholytic dyskeratosis was made based on a correlation of the lesion's clinical morphology and microscopic features.
The remarkable feature of our patient's trichofolliculoma is the incidental presence of focal acantholytic dyskeratosis.
We report focal acantholytic dyskeratosis within the epithelium of a trichofolliculoma and add trichofolliculoma to the list of follicular lesions in which focal acantholytic dyskeratosis may be observed as an incidental microscopic change.
Additionally, sebaceous cells are a known component of folliculosebaceous cystic hamartomas and sebaceous trichofolliculomas, although these lesions a histologically distinct from verrucous cysts.