Metastasis to Pleura of Malignant Trichilemmal Tumor

Proliferating trichilemmal tumor arises from the outer layer of the hair follicle and 90% of lesions originate from scalp. They are usually rare skin lesions in elderly women. Although these lesions are benign, local recurrences and metastases are rare, as malignancy may be possible. Three years ago, the complete excision of malignant trichilemmal tumors from the frontal region tumor with malignant pleural metastasis was reported in the case of 62-year-old female patient that presented with a review of the literature due to its rarity.