False positive 18F-FDG PET scan in adrenal oncocytoma.
18F-FDG whole-body positron emulsion tomography (18F-FDG PET) has become an established imaging modality for a variety of cancers. Today, 18F-FDG PET is utilized to differentiate benign from malignant non-functioning adrenal masses. In this report, a 25-year-old woman presented with a 2-month history of left flank pain. Abdominal CT revealed a left 6.5 x 4.5 cm adrenal mass with regular margins and focal calcification. To make a differential diagnosis, 18F-FDG PET was performed. Preoperative laboratory studies showed that the mass was non-functioning. A left adrenalectomy was performed through a left subcostal incision. The final pathologic evaluation revealed adrenal oncocytoma. We present the disassociation between preoperative 18F-FDG PET and pathologic findings of a benign adrenocortical oncocytoma.
Acar
C
C
Department of Urology, Gazi University School of Medicine, Ankara, Turkey. acarcenk@hotmail.com
Akkas
B E
BE
Sen
I
I
Sozen
S
S
Kitapci
M T
MT
D018249:Adenoma, Oxyphilic / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D000310:Adrenal Gland Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D000315:Adrenalectomy / Q000379:methods; D000328:Adult; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D005260:Female; D019788:Fluorodeoxyglucose F18; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D009367:Neoplasm Staging; D049268:Positron-Emission Tomography / Q000379:methods*; D011300:Preoperative Care / Q000379:methods; D016896:Treatment Outcome
D019788:Fluorodeoxyglucose F18