CT and MRI features and differential diagnosis of angioleiomyoma of the extremities
LING Lifang
LI Jing
WANG Zhongqiu
WANG Zhitao
CHEN Lingshan
HAN Mei
Abstract：Objective To analyze the CT and MRI imaging features of angioleiomyoma of the extremities,hoping to improve clinical understanding of angioleiomyoma and diminish misdiagnosis.Methods Ten cases of angioleiomyoma of the extremities confirmed by surgical pathology were selected,including 3 cases of the upper limbs and 7 cases of the lower limbs.In 8 cases,the lesions were in a long-term stable state and increased in size for a short period of time followed by pain in 6 cases and incidental findings in 2 cases.All tumors were located in the superficial subcutaneous area of the limbs,with the maximum diameter of the lesions ranging from 7 to 35 mm.One case was examined by CT,8 cases were examined by MRI,and 1 case was examined by both CT and MRI.Clinical data of the patients and the performance of CT and MRI were analyzed,and the imaging characteristics were summarized.Results In 2 cases,the tumors showed soft tissue density with internal gross calcification on CT scan.MRI showed rounded isosignal on T1 WI and inhomogeneous high signal on T2 compression fat image.Dark reticular signs were seen within the larger tumors in 5 cases and peritumoral vascular signs in 6 cases without significant diffusion limitation.Enhanced MRI showed progressive significant enhancement.Conclusion The CT and MRI images of angioleiomyoma have certain characteristics and can reflect its histological components,which can help in precise preoperative diagnosis.
Keywords：AngioleiomyomaExtremitiesComputed tomographyMagnetic resonance imagingDifferential diagnosis
Publication Date：2024-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1237-1240 )