Asymptomatic metastasis to the larynx detected by FDG PET/CT in a patient with recurrent rectal adenocarcinoma.
Metastasis of colorectal adenocarcinoma to the larynx is a very rare condition. Here, we report a 72-year-old woman with a history of rectal adenocarcinoma. She was referred for whole-body FDG PET/CT scanning because of an elevating serum level of carcinoembryonic antigen. PET images showed focally increased FDG accumulation in the larynx (SUVmax=12.9). Coregistered CT images showed mild wall thickening at the left subglottic area. The findings of after excisional biopsy confirmed that this FDG-avid lesion was metastatic adenocarcinoma of the colorectal origin.
Department of Radiology, Chang Bing Show Chwan Hospital, Changhua, Taiwan.
Tai-Yi
TY
Chen
Guang-Uei
GU
Hung
Chia-Chun
CC
Hung
Jainn-Shiun
JS
Chiu
Chia-Hung
CH
Kao
D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000473:pathology*; D000368:Aged; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007822:Laryngeal Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D012008:Recurrence; D014057:Tomography, X-Ray Computed
D019788:Fluorodeoxyglucose F18