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Updated: Dec 9, 2025

Surgical Treatment of an Endolymphatic Sac Tumor
Published on: May 26, 2023
A Case of Primary Sinonasal Yolk Sac Tumor
Peipei Wang1, Guozhu Hou, Fang Li
1From the Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College; and Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China.
Abstract:
Yolk sac tumor (YST) is a rare and highly malignant germ cell tumor that is extremely rare in the nasal region. Herein, we present a case of biopsy-proven nasal YST admixed with transitional cell carcinoma in a 58-year-old woman. Complementary F-FDG PET/CT revealed the only FDG-avid mass in the right nasal cavity. This case indicates that YST could occur in the nasal region primarily, and F-FDG PET/CT is a useful tool to distinguish between primary and metastatic lesions.

