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Case Reports
A Case of Birt-Hogg-Dubé Syndrome with Renal Cancer Treated as Multiple Metastases of Cancer of Unknown Primary.
- Natsuko Atsukawa, Toshinari Yagi, Chiaki Kubo, Katsuyuki Nakanishi, and Keigo Osuga.
- Department of Diagnostic and Interventional Radiology, Osaka International Cancer Institute, Japan.
- Intern. Med. 2021 Sep 15; 60 (18): 3047-3050.
AbstractA 60-year-old woman presented with multiple lung and bone metastases with unknown primary cancer. Chest CT images showed multiple pulmonary cysts, predominantly of the middle and lower lobes. She also had a history of pneumothorax. Four years after chemotherapy and radiation therapy, multiple hypervascular tumors eventually developed in the bilateral kidneys, suggesting the possibility of Birt-Hogg-Dubé (BHD) syndrome. Genetic testing revealed a folliculin mutation, which confirmed the diagnosis of BHD syndrome. When we encounter cancer of unknown primary with multiple pulmonary cysts in a patient with a history of pneumothorax, thorough imaging of the kidneys and genetic testing for BHD syndrome is necessary.
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