title: Dermatofibroma mimicking malignancy on integrated F-18 fluorodeoxyglucose PET-CT.
abstract: A 31-year-old female with a history of ovarian cancer underwent an F-18 fluorodeoxyglucose (FDG) positron emission tomography-computed tomography (PET-CT) scan. The PET-CT demonstrated focal nodular uptake in the subcutaneous tissue of the back adjacent to the paraspinal muscles. Color Doppler ultrasonography examination demonstrated a vascular solid mass. The patient underwent biopsy followed by excision. The pathologic diagnosis was dermatofibroma. Although benign, dermatofibromas can have intense FDG uptake.
authors.affiliation: Department of Radiology, Trakya University School of Medicine, Edirne, Turkey. demirkemal@superonline.com
authors.forename: Mustafa Kemal
authors.initials: MK
authors.lastname: Demir
authors.forename: Hüseyin
authors.initials: H
authors.lastname: Ozdemir
authors.forename: Hakan
authors.initials: H
authors.lastname: Gençhallaç
authors.forename: Semsi
authors.initials: S
authors.lastname: Altaner
authors.forename: Ozcan
authors.initials: O
authors.lastname: Kartal
mesh_terms: D000328:Adult; D001415:Back; D003937:Diagnosis, Differential; D005260:Female; D019788:Fluorodeoxyglucose F18; D018219:Histiocytoma, Benign Fibrous / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D049268:Positron-Emission Tomography / Q000379:methods*; D019275:Radiopharmaceuticals; D012878:Skin Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D014463:Ultrasonography
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18