title: Umbilical Plugoma Mimics Melanoma Metastasis on FDG PET/CT.
abstract: An 84-year-old man with history of left forehead melanoma was found on a restaging F-FDG PET/CT scan with hypermetabolic lung nodules and a mildly FDG-avid soft tissue nodule posterior to the umbilicus. Biopsy of a right lower lobe nodule revealed metastatic melanoma. Follow-up posttreatment PET/CT scan showed complete resolution of lung nodules and unchanged FDG uptake at the level of the umbilicus. Review of the patient's medical history revealed a remote history of umbilical hernia repair. We present a case of postsurgical plugoma mimicking the appearance of melanoma metastasis on FDG PET/CT.
authors.affiliation: From the *Department of Imaging, Dana-Farber Cancer Institute; and †Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
authors.forename: Yazan Z
authors.initials: YZ
authors.lastname: Alabed
authors.forename: Christopher
authors.initials: C
authors.lastname: Sakellis
mesh_terms: D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D019788:Fluorodeoxyglucose F18; D046449:Hernia, Abdominal / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008545:Melanoma / Q000000981:diagnostic imaging* / Q000473:pathology; D064847:Multimodal Imaging; D009362:Neoplasm Metastasis; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed; D014472:Umbilicus / Q000000981:diagnostic imaging*
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18