Dermatofibroma mimicking malignancy on integrated F-18 fluorodeoxyglucose PET-CT.
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.
Demir
Mustafa Kemal
MK
Department of Radiology, Trakya University School of Medicine, Edirne, Turkey. demirkemal@superonline.com
Ozdemir
Hüseyin
H
Gençhallaç
Hakan
H
Altaner
Semsi
S
Kartal
Ozcan
O
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
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18