Imaging sonographic findings of in a case of proliferating trichilemmal tumor of a finger: A case report

ABSTRACT
Proliferating trichilemmal tumor (PTT) is a rare tumor that originates from the outer root sheath of a hair follicle. About 90% of PTTs occur on the scalp. The sonographic findings of PTT in the subungual region have not been reported previously. In our case, sonography showed a heterogeneous mass containing echogenic foci with no detectable intratumoral vascularity. These echogenic foci probably represent keratin and cholesterol. © 2017 Wiley Periodicals, Inc. J Clin Ultrasound, 2017

Source: Journal of Clinical Ultrasound - May 11, 2017 Category: Radiology Authors: Ki Eon Kwon, Seon ‐Jeong Kim, Joo Hak Kim, Yoon Yang Jung, Noh Hyuck Park, Ji Yeon Park, Kyung A Kang, Soo Heui Baek Tags: Case Report Source Type: research