Malignant Proliferating Trichilemmal Tumor Showing Invasion into the Brain Parenchyme

J Korean Neurol Assoc > Volume 18(3); 2000 > Article

Journal of the Korean Neurological Association 2000;18(3): 362-364.

뇌 실질을 침범한 악성 증식성 모낭 종양

조동신,남상원,안무영,이태경,김동원*, 조동신,남상원,안무영,이태경,김동원*

순천향대학교 의과대학 신경과학교실,임상병리학교실*

Malignant Proliferating Trichilemmal Tumor Showing Invasion into the Brain Parenchyme

Dong-Sin Cho, M.D., Sang-Won Nam, M.D., Moo-Young Ahn, M.D., Tae-Kyeong Lee, M.D., Dong-Won Kim, M.D.*

Department of Neurology, Pathology*, College of Medicine, Soonchunhyang University

Abstract

A 32-year-old man was admitted to our hospital due to a headache. A brain CT and MRI showed a parenchymal mass in the right temporoparietooccipital lobe and histopathological specimens demonstrated a proliferating trichilemmal tumor (PTT). Two years prior to experiencing headache, the man had a round mass localized in the right suboccipital scalp which recurred after wide excisions and was found to be PTT. There was no evidence of tumor recurrence at the scalp during the period the man first began experiencing headache. Although PTT usually occurrs at the scalp, direct invasion into the brain is very rare. We report a patient with malignant PTT who developed brain parenchymal inva-sion, which was supported by neuroradiological and histopathological findings. J Korean Neurol Assoc 18(3):362~364, 2000 Key Words : Malignant proliferating trichilemmal tumor, Brain invasion