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

Background Malignant proliferating trichilemmal tumor is a rare skin tumor that affects mainly
older women. It mimicks differential squamous cell carcinoma and its biological behavior is …

Proliferating Trichilemmal Tumor: A Case on the Nose of a 70-Year-Old Man | Case Reports in
Dermatology | Karger Publishers Skip to Main Content S. Karger AG S. Karger AG Close Who …

Proliferating trichilemmal tumor (PTT) is rare and follows a protracted course, almost always
benign. Nevertheless an adverse outcome may occur. Usually PTT presents as an indolent …

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 …

The proliferating trichilemmal tumor (PTT) is a very rare cutaneous neoplasm that rarely is
malignant. PTTs mainly occur in the scalp of elderly women. Only 10% occur in places other …

BACKGROUND: Malignant proliferating trichilemmal tumour is a rare skin tumour that
originates from the root sheath of the hair and usually arises in the sun-exposed areas of …

Malignant proliferating trichilemmal tumour is a rare cutaneous malignant neoplasm usually
occurring in elderly women. We present a case of malignant trichilemmal tumour in a young …

We describe a case of malignant proliferating trichilemmal tumor showing multiple distant
metastases. For 10 years, the patient had had a round mass in the occiput, which recurred …