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Case report: Malignant proliferating trichilemmal tumor of the thumb
Guojie Wang1, Xuan Zhou2, Junqi Luo1
1Department of Radiology, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China.
Abstract:
Proliferating trichilemmal tumor is a very rare benign tumor that has the potential to transition into a malignant tumor. PTT most commonly affects the scalps of women above 60 years old and is frequently misdiagnosed due to its rarity. Herein, we present a case of a 68-year-old man with a malignant proliferating trichilemmal tumor on his right thumb. X-ray image showed a soft tissue mass on his thumb accompanied by bone destruction, while 18F-FDG PET revealed a hypermetabolic mass in the first index with axillary lymph node metastasis.
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