Proliferating trichilemmal tumor (PTT) is a rare adnexal neoplasm 1, 2 derived from the outer
sheath of the hair follicle and may originate from a pre-existing pilar/trichilemmal cyst as a …

Proliferating trichilemmal tumor (PTT) is an uncommon neoplasm arising from the follicular
isthmus. Its histological characteristic is the presence of trichilemmal keratinization. PTT …

Proliferating trichilemmal tumors (PTTs) are benign adnexal skin neoplasms that arise from
the outer root sheath of the hair follicle. These tumors are most commonly observed on the …

Malignant proliferating trichilemmal tumors (MPTTs, malignant proliferating pilar tumors) are
theorized to originate from the outer root sheath of the hair follicle which resembles the …

Proliferating trichilemmal tumor is a rare tumor originating in the external root sheath, that is
usually found in the scalp of middle-aged or elderly females. Its histologic appearance may …

Proliferating trichilemmal tumor (PTT) is a rare cutaneous adnexal neoplasm of the hair
follicle that undergoes outer root sheath differentiation in the isthmus. Histological hallmarks …

Proliferating trichilemmal tumor is a rare tumor originating in the external root sheath, that is
usually found in the scalp of middle-aged or elderly females. Its histologic appearance may …

Proliferating trichilemmal tumor (PTT) is a benign tumor originating from the outer root
sheath of a hair follicle. Malignant transformation in case of PTT is very rare and unusual …

Proliferating trichilemmal tumours are benign but locally aggressive skin neoplasms arising
from hair follicles. Rarely, they can become malignant and must be appropriately managed …

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 …