title: Metastasis of malignant melanoma to common biliary duct demonstrated with F-18 FDG PET/CT.
abstract: Malignant melanoma is well known for its propensity to spread to unpredictable sites. F-18 FDG PET can highlight metastases at unusual sites that may be missed with conventional imaging modalities. In this study, we present the case of a 57-year-old male patient who was referred to our department for PET/CT imaging because of metabolic characterization of the lesion located in distal common biliary duct and biopsied as malignant melanoma. His PET/CT images revealed a hypermetabolic lesion at the mentioned site. Interestingly, his images also showed mild FDG accumulation on right frontoparietal skin, and the biopsy of this lesion was also reported as malignant melanoma.
authors.affiliation: Department of Nuclear Medicine, Medical Faculty of Istanbul, Istanbul University, Capa, Istanbul, Turkey. yaseminsanli75@yahoo.com
authors.forename: Yasemin
authors.initials: Y
authors.lastname: Sanli
authors.forename: Gozde
authors.initials: G
authors.lastname: Ozkan
authors.forename: Gulcin
authors.initials: G
authors.lastname: Yegen
authors.forename: Cuneyt
authors.initials: C
authors.lastname: Turkmen
authors.forename: Ayse
authors.initials: A
authors.lastname: Mudun
mesh_terms: D001650:Bile Duct Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000503:physiopathology / Q000556:secondary*; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008545:Melanoma / Q000473:pathology*; D008875:Middle Aged; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18