Yoo Min Young, Koong Sung-Soo, Kim Si-Wook, Kim Dohun
1Department of Nuclear Medicine, Chungbuk National University Hospital, Cheongju, South Korea.
2Department of Internal Medicine, College of Medicine, Chungbuk National University and Chungbuk National University Hospital, Cheongju, South Korea.
Nucl Med Mol Imaging. 2019 Jun;53(3):231-234. doi: 10.1007/s13139-019-00591-0. Epub 2019 Mar 26.
A 45-year-old male visited our clinic due to right palmar anhidrosis and contralateral hyperhidrosis. Chest computed tomography (CT) showed a solitary pulmonary nodule with mediastinal lymph node enlargement, but a cause for atypical palmar anhidrosis was not identified. Subsequent fluorine-18-fluorodeoxyglucose (F-FDG) positron emission tomography/computed (PET/CT) revealed a localized pleural metastasis at the right apex with direct invasion of the paravertebral sympathetic chain. The pleural metastasis, which was not seen on chest CT, evoked ipsilateral anhidrosis independent of a mass effect or direct invasion by the primary lung tumor. F-FDG PET/CT can be helpful in identifying the cause of atypical symptoms in patient with small sized lung cancer.
一名45岁男性因右手掌无汗症和对侧多汗症前来我院就诊。胸部计算机断层扫描（CT）显示有一个孤立性肺结节伴纵隔淋巴结肿大，但未发现非典型手掌无汗症的病因。随后的氟-18-氟脱氧葡萄糖（F-FDG）正电子发射断层扫描/计算机断层扫描（PET/CT）显示右肺尖有局限性胸膜转移，并直接侵犯椎旁交感神经链。胸膜转移在胸部CT上未显示，引发了同侧无汗症，与原发性肺癌的肿块效应或直接侵犯无关。F-FDG PET/CT有助于识别小肺癌患者非典型症状的病因。
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