具有血管扩张特征的软组织骨肉瘤：两例病例的磁共振成像表现

Soft tissue osteosarcoma with telangiectatic features: MR imaging findings in two cases.

作者信息

Dubec J J, Munk P L, O'Connell J X, Lee M J, Janzen D, Connell D, Masri B, Logan P M

机构信息

Department of Radiology, Vancouver Hospital and Health Sciences Center, Vancouver Musculoskeletal Tumor Group, University of British Columbia, Canada.

出版信息

Skeletal Radiol. 1997 Dec;26(12):732-6. doi: 10.1007/s002560050321.

DOI:10.1007/s002560050321

PMID:9453109

Abstract

Extraskeletal osteosarcomas are rare tumors, and the telangiectatic variety is the least common histological variety in this group. This report describes the clinical and MR imaging findings in two cases arising in the pretibial soft tissues. Both tumors demonstrated marked inhomogeneity with T2-weighted spin echo and STIR sequences. One of the tumors revealed numerous fluid levels within the lesion. A review of the MRI features of these tumors is provided. Osteosarcoma with telangiectatic features should be considered in the differential diagnosis of a soft tissue mass with fluid-fluid levels in patients 40 years of age or older.

摘要

骨外骨肉瘤是罕见肿瘤，而毛细血管扩张型是该组中最不常见的组织学类型。本报告描述了2例发生于胫前软组织的此类肿瘤的临床和磁共振成像表现。2例肿瘤在T2加权自旋回波和短TI反转恢复（STIR）序列上均表现出明显的不均匀性。其中1例肿瘤在病灶内显示出大量液平面。本文还对这些肿瘤的MRI特征进行了综述。对于40岁及以上出现含有液-液平面的软组织肿块的患者，在鉴别诊断时应考虑毛细血管扩张型骨肉瘤。