F-18 FDG PET/CT findings in two patients with hepatic angiomyolipoma with and without intratumoral hemorrhage.
Two female patients aged 62 and 74 years underwent F-18 FDG PET/CT for evaluation of a large hepatic tumor. Subsequently, both patients underwent a partial hepatectomy which histopathologically revealed benign hepatic angiomyolipomas (AMLs). One patient with AML with a massive intratumoral hemorrhage presented with multiple foci demonstrating an increased FDG uptake along the margin of the cold defects that corresponded to low density areas within the tumor on contrast-enhanced CT, whereas the other patient with AML without any hemorrhage presented with a low FDG uptake in the tumor. This report demonstrates that benign hepatic AMLs may demonstrate increased FDG uptake if there is hemorrhage and a related inflammatory response.
Takanami
Kentaro
K
Department of Radiology, Graduate School of Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan. takanami@rad.med.tohoku.ac.jp
Kaneta
Tomohiro
T
Hitachi
Shin
S
Yamada
Takayuki
T
Ishida
Kazuyuki
K
Rikiyama
Toshiki
T
Katayose
Yu
Y
Unno
Michiaki
M
Yamada
Shogo
S
Takahashi
Shoki
S
D000368:Aged; D018207:Angiomyolipoma / Q000150:complications / Q000175:diagnosis*; D005260:Female; D019788:Fluorodeoxyglucose F18; D006470:Hemorrhage / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D008113:Liver Neoplasms / Q000150:complications / Q000175:diagnosis*; D008875:Middle Aged; D049268:Positron-Emission Tomography / Q000379:methods*; D019275:Radiopharmaceuticals; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013382:Subtraction Technique; D014057:Tomography, X-Ray Computed / Q000379:methods*
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18