From the Departments of Nuclear Medicine.
Radiology.
Clin Nucl Med. 2020 Jun;45(6):e283-e284. doi: 10.1097/RLU.0000000000003032.
An 80-year-old man developed high-risk prostate cancer after 7 years of active surveillance. For staging and treatment planning, a Ga-PSMA PET/MRI was performed. Besides the PSMA-positive primary tumor and a solitary bone metastasis in the fifth thoracic vertebral body, an intensive intrahepatic PSMA expression (SUVmax, 16.3) was suspicious for a liver metastasis. The results of a previously performed contrast-enhanced CT, a consecutively performed contrast-enhanced ultrasound, and a follow-up PSMA PET/CT after 4 months with a stable lesion during androgen deprivation lead to the diagnosis of a vascular malformation metabolically mimicking a hepatic metastasis of the prostate tumor.
一位 80 岁男性在主动监测 7 年后发展为高危前列腺癌。为了进行分期和治疗计划，进行了 Ga-PSMA PET/MRI 检查。除了 PSMA 阳性的原发性肿瘤和第五胸椎体的单一骨转移外，肝脏内 PSMA 表达强烈（SUVmax，16.3），提示可能存在肝转移。先前进行的增强 CT、连续进行的增强超声以及 4 个月后进行的 PSMA PET/CT 随访结果显示，病变稳定，提示存在代谢上类似于前列腺肿瘤肝转移的血管畸形。
