[CT appearance of small renal angiomyolipoma].
Twenty-six small renal angiomyolipomas (AML) in 21-patients, detected incidentally by ultrasonography, were evaluated with CT. Conventional CT findings of AML were classified into three types by the degree of the fatty areas in the mass. Type 1 is a mainly fat density mass like a lipoma observed in 7 lesions (26.9%). Type 2 is a fatty mass intermixed with areas of tissue density and found in 15 lesions (57.7%). Type 3 is a mass without fatty portion and observed in 4 lesions (15.4%). These latter lesions were indistinguishable from renal cell carcinoma on CT. It is important to diagnose a small lesion of the kidney as AML correctly for proper treatment.
Hatanaka
Y
Y
Department of Radiology, Kumamoto University School of Medicine.
Ueno
S
S
Sumi
S
S
Nishimura
R
R
Bussaka
H
H
Takahashi
M
M
D000328:Adult; D000368:Aged; D005260:Female; D006391:Hemangioma / Q000000981:diagnostic imaging*; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging*; D008067:Lipoma / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed