title: Mimicry of physiological urinary FDG excretion: squamous cell carcinoma of esophagus metastasizing to psoas muscle.
abstract: Skeletal muscle metastases are rare and usually occur with various malignancies at more advanced stages. FDG PET/CT has been known as a useful tool to detect these lesions because of the character of whole-body scanning and superior contrast between malignant and normal tissues, except in areas with abundant physiological FDG radioactivity, such as the urinary system. We present a patient with esophageal squamous cell carcinoma and an incidental, rare finding of psoas muscle metastasis that was initially omitted because of the similarity of its distribution to physiological urinary FDG excretion in the ureter.
authors.affiliation: Departments of Nuclear Medicine and PET Center, China Medical University and Hospital, Taichung, Taiwan.
authors.forename: Te-Chun
authors.initials: TC
authors.lastname: Hsieh
authors.forename: Shung-Shung
authors.initials: SS
authors.lastname: Sun
authors.forename: Yu-Chin
authors.initials: YC
authors.lastname: Wu
authors.forename: Kuo-Yang
authors.initials: KY
authors.lastname: Yen
authors.forename: Chia-Hung
authors.initials: CH
authors.lastname: Kao
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D019788:Fluorodeoxyglucose F18 / Q000652:urine*; D006801:Humans; D008297:Male; D008875:Middle Aged; D019042:Muscle Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*; D049268:Positron-Emission Tomography; D016658:Psoas Muscles / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18