From the Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA.
Clin Nucl Med. 2017 Apr;42(4):e218-e220. doi: 10.1097/RLU.0000000000001569.
We present a case of an incidentally detected squamous cell carcinoma of the oropharynx on Ga-PSMA-11 PET. A 71-year-old man's condition was diagnosed as prostate carcinoma after a year of rising serum prostate-specific antigen. The staging Ga-PSMA PET/CT demonstrated focal radiotracer uptake in the prostate corresponding to his known primary prostate cancer. However, a PSMA-avid 3.4-cm mass was incidentally found in the right tongue base that was biopsied, confirming squamous cell carcinoma.
我们报告了一例 Ga-PSMA-11 PET 偶然发现的口咽鳞状细胞癌。一年来，患者血清前列腺特异性抗原持续升高，经诊断为前列腺癌。分期 Ga-PSMA PET/CT 显示前列腺有局灶性放射性示踪剂摄取，与已知的原发性前列腺癌相对应。然而，在右侧舌根部偶然发现一个 3.4 厘米大小的 PSMA 摄取肿块，经活检证实为鳞状细胞癌。
