Angiomyolipoma arising in the thigh.
A 41-year-old man presented with an asymptomatic mass in the right medial thigh. Magnetic resonance imaging (MRI) revealed a well-demarcated, 10-cm mass in the right adductor muscles. The margins of the mass exhibited high signal intensity and the rest showed low or iso signal intensity on T1-weighted MR images. However, the high signal intensity was decreased on T2-weighted images with fat suppression. The central part of the tumor was of inhomogeneous high signal intensity on T2-weighted images; after Gd-DTPA injection it enhanced in homogeneously on T1-weighted images with fat suppression. On dynamic computed tomography (CT) in the arterial phase, there were strongly enhancing spotty areas in the tumor. At surgery, a yellow-whitish tumor was resected and a pathological diagnosis of angiomyolipoma (AML) in the thigh was made.
Kuroda
S
S
Department of Radiology, Kyoto Prefectural University of Medicine, Japan.
Itoh
H
H
Yamagami
T
T
Kizu
O
O
Murata
H
H
Kusuzaki
K
K
Yamano
T
T
Maeda
T
T
D000273:Adipose Tissue / Q000473:pathology; D000328:Adult; D000792:Angiography; D018207:Angiomyolipoma / Q000175:diagnosis* / Q000473:pathology; D003287:Contrast Media; D005355:Fibrosis; D019786:Gadolinium DTPA; D006801:Humans; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging; D008297:Male; D009130:Muscle, Smooth / Q000473:pathology; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000473:pathology; D013848:Thigh / Q000473:pathology*; D014057:Tomography, X-Ray Computed
D003287:Contrast Media; D019786:Gadolinium DTPA