Malignant Proliferating Trichilemmal Tumor Showing Distant Metastases
- 1 October 1997
- journal article
- case report
- Published by Wolters Kluwer Health in The American Journal of Dermatopathology
- Vol. 19 (5) , 536-539
- https://doi.org/10.1097/00000372-199710000-00109
Abstract
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 twice after wide excisions, and later metastasized to the cervical lymph nodes, periparotid area, and chest. Each time the lesions were excised, histologic specimens demonstrated a proliferating trichilemmal tumor with increasing nuclear atypia. Serial specimens showed increasing Ki-67 positivity as the extent of the tumor advanced.Keywords
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