title: Rare axillary metastasis from squamous cell carcinoma of the tonsil.
abstract: Tonsillar squamous cell carcinoma (SCC) is rarely involved in axillary lymph nodes. We describe herein a rare case of tonsillar SCC involved in axillary lymph nodes. A 55-year-old man with a history of a wide excision of the left tonsil and concurrent chemoradiotherpy for the tonsillar SCC 1 year ago was presented to us with dysphagia. Except for the confirmed tumor over the retropharyngeal space, whole-body FDG PET/CT demonstrated a hypermetabolic lesion about 1 cm in size in the right axilla. Histopathology proved as a metastatic tonsillar SCC. The cancer staging and therapeutic regimens were thus altered.
authors.affiliation: Department of Nuclear Medicine, Tri-Service General Hospital, Taipei, Taiwan.
authors.forename: Cheng-Yi
authors.initials: CY
authors.lastname: Cheng
authors.forename: Ting-Fu
authors.initials: TF
authors.lastname: Su
authors.forename: Yau-Hsan
authors.initials: YH
authors.lastname: Lin
authors.forename: Ching-Liang
authors.initials: CL
authors.lastname: Ho
authors.forename: Wen-Sheng
authors.initials: WS
authors.lastname: Huang
mesh_terms: D001365:Axilla / Q000000981:diagnostic imaging / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging / Q000473:pathology*; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008207:Lymphatic Metastasis / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed; D014067:Tonsillar Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*
chemical_list: D019788:Fluorodeoxyglucose F18