关键词: 脂肪瘤, 肌肉, 超声检查, 多普勒

Abstract: 【Abstract】〓Objective〓To summarize the ultrasonographic features of intramuscular lipoma. Methods〓The ultrasonographic findings in 18 patients with intramuscular lipoma were retrospectively analyzed. Results〓of 18 cases, the masses located in the lower extremity in 5 cases, upper extremity in 3 cases, neck in 3 cases, shoulder and neck in 2 cases, and lumbus in 5 cases. Lesions were round in 1 case, oval in 12 cases and irregular in 5 cases..Masses were well-defined in 5 cases, partial well-defined in 7 cases and ill-defined in 6 cases. Overall lesion echogenicity was hyperechoic to muscle in 11 cases, hypoechoic to muscle in 3 cases,isoechoic to muscle in 1 cases and mix-echoic to muscle in 3 cases. Color Doppler Flow Imaging (CDFI) showed blood flow signal around the masses in 8 cases and 4 were venous blood flow signal. Conclusion〓Intramuscular lipomas have some distinctive ultrasonographic features. Color Doppler ultrasound and could correctly show the location and deepness of the masses, which is useful for the diagnosis of intramuscular lipoma.

Key words: Lipoma, Muscle, Ultrasonography, Doppler