截肢后神经瘤的磁共振成像

MRI of postamputation neuromas.

作者信息

Singson R D, Feldman F, Staron R, Fechtner D, Gonzalez E, Stein J

机构信息

Department of Radiology, College of Physicians and Surgeons, Presbyterian Hospital, New York, New York.

出版信息

Skeletal Radiol. 1990;19(4):259-62. doi: 10.1007/BF00191667.

DOI:10.1007/BF00191667

PMID:2353210

Abstract

Magnetic resonance imaging of 24 symptomatic lower limb amputations revealed that postamputation neuromas were easily diagnosed in above-the-knee amputees. Visualization of nerve trunks in below-the-knee amputees was difficult due to greater compactness of calf muscles. Neuromas on magnetic resonance imaging appeared ovoid or rounded and were usually heterogenous and isointense with muscle. Magnetic resonance imaging also showed additional causes of stump pain such as scar formation, fat in atrophied muscles, soft tissue abscesses, osteomyelitis, and hematomas.

摘要

对24例有症状的下肢截肢患者进行的磁共振成像显示，在膝上截肢者中，截肢后神经瘤很容易诊断。由于小腿肌肉更加紧实，膝下截肢者的神经干可视化困难。磁共振成像上的神经瘤呈卵圆形或圆形，通常与肌肉信号不均匀且等信号。磁共振成像还显示了残端疼痛的其他原因，如瘢痕形成、萎缩肌肉中的脂肪、软组织脓肿、骨髓炎和血肿。