From the Departments of *Nuclear Medicine, †Thoracic Surgery, and ‡Pathology, Changhai Hospital, Shanghai, China.
Clin Nucl Med. 2014 May;39(5):446-9. doi: 10.1097/RLU.0b013e3182817d40.
Metastasis to the bronchus from extrathoracic malignancy is a rare event. We present 2 cases of endobronchial metastases from extrathoracic tumors with FDG PET/CT findings. One patient had a hypermetabolic endobronchial metastasis from breast cancer. The other patient had a hypermetabolic endobronchial metastasis from hepatocellular carcinoma. Both the endobronchial metastases were confirmed by bronchoscopic biopsy. These 2 cases indicate that FDG PET/CT is useful for detecting endobronchial metastases, and endobronchial metastasis should be included in the differential diagnosis of abnormal endotracheal or endobronchial FDG accumulation in patients with histories of malignant tumors.
支气管外肿瘤的支气管内转移是一种罕见的事件。我们展示了 2 例来自胸外肿瘤的 FDG PET/CT 表现的支气管内转移。1 例患者有乳腺癌的高代谢性支气管内转移。另 1 例患者有肝细胞癌的高代谢性支气管内转移。这 2 例支气管内转移均通过支气管镜活检证实。这 2 例表明，FDG PET/CT 可用于检测支气管内转移，对于有恶性肿瘤病史的患者，异常气管内或支气管内 FDG 聚集，应包括支气管内转移的鉴别诊断。
