From the Department of Nuclear Medicine, Monash Health, Melbourne, Victoria, Australia.
Clin Nucl Med. 2014 Nov;39(11):988-9. doi: 10.1097/RLU.0000000000000474.
A 40-year-old man presented with a painless enlarging right neck mass over several weeks without a history of trauma or infection. Ultrasound, contrast-enhanced CT, and MRI showed a mass in an expanded vein extending into the parotid gland. Blood-stained fine-needle aspiration biopsy demonstrated atypical lymphoid cells, but there was insufficient material for a diagnosis. The mass was intensely avid on 18F-FDG PET/CT and was suggestive of a neoplasm. Excision confirmed a mass within the external jugular vein with areas of invasion through the vessel wall. A diagnosis of small cell neuroendocrine carcinoma was made on histology.
一位 40 岁男性，数周来出现无痛性右侧颈部肿块增大，无外伤或感染史。超声、增强 CT 和 MRI 显示肿块位于扩张的静脉内，延伸至腮腺。带血细针抽吸活检显示非典型淋巴样细胞，但材料不足无法明确诊断。肿块在 18F-FDG PET/CT 上摄取强烈，提示为肿瘤。切除证实颈外静脉内有肿块，并通过血管壁侵犯。组织学诊断为小细胞神经内分泌癌。
