The proliferating trichilemmal tumor is a lesion with trichilemmal differentiation, more
common occurring among elderly women; it affects the scalp with sizes ranging from 2-10 …

Proliferating Trichilemmal tumors (PTT) are rare neoplasms of the external root hair sheath
that are largely benign. The potential for PTT to undergo transformation to a Malignant …

The proliferating trichilemmal tumor, also called proliferative trichilemmal cyst or pilar cyst, is
an uncommon, mostly benign neoplasm derived from the outer sheath of the hair follicle. 1 It …

Cutaneous adnexal tumours derived from the outer root sheath of hair follicles are
trichilemmal tumours or pilar cysts. Malignant proliferating trichilemmal tumour can occur I …

A sixty-year-old woman with multiple proliferating trichilemmal cysts over the vulva is
described. The appearance of the eruptions suggests a hamartomatous origin. The lesions …

Proliferating trichilemmal tumors (PTTs) are rare benign neoplasms of follicular linage
whose histologi cal hallmark is the presence of trichilemmal keratini zation [1]. PTT is …

Background: Proliferating trichilemmal tumors (PTTs) are uncommon exuberant growths of
cells derived from the external root sheath. They tend to occur in older women, with a …

Indian Journal of Dermatopathology and Diagnostic Dermatology¦ Volume 7¦ Issue 1¦
January‑June 2020 41 given his/her/their consent for his/her/their images and other clinical …

Background: A proliferating trichilemmal cyst (PTC) is an uncommon, rapidly-reproducing
cutaneous epithelial cyst, differentiating from the isthmic portion of the outer hair root sheath …

A 64-year-old man presented with a superficial, well-demarcated, skin-colored tumor on the
left posterior scalp that measured 4 x 5 x 6 cm. The tumor was nearly hairless, rubbery, non …