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

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.