Increased F-18 FDG uptake on positron emission tomography/computed tomography imaging caused by plantar fibromatosis.
We detail the history and evaluation of a 68-year-old man who had head-to-toe PET/CT scanning that showed a focal area of increased FDG uptake in the left medial foot. This was thought to be recurrence of his melanoma. The patient was asymptomatic. He had a history of malignant melanoma of the right ear, which was removed in 2001. On biopsy, the foot lesion was diagnosed as plantar fibromatosis. Plantar fibromatosis is a benign fibroblastic condition, which can be indistinguishable from malignancy in head-to-toe PET/CT scans. Awareness of their potential appearance on PET and PET/CT will aid in the appropriate staging of oncology patients.
Scheler
Jennifer
J
Department of Radiology, University of Cincinnati, Cincinnati, Ohio, USA.
Rehani
Bhavya
B
Percy
Thomas
T
Pelstring
Richard
R
Bharija
Ankur
A
Ames
Donald
D
Mantil
Joseph
J
D000368:Aged; D005350:Fibroma / Q000175:diagnosis* / Q000378:metabolism; D019788:Fluorodeoxyglucose F18 / Q000493:pharmacokinetics; D005534:Foot Diseases / Q000175:diagnosis* / Q000378:metabolism; D006801:Humans; D008297:Male; D049268:Positron-Emission Tomography / Q000379:methods*; D019275:Radiopharmaceuticals / Q000493:pharmacokinetics; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000378:metabolism; D014057:Tomography, X-Ray Computed
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18