Keywords:
Musculoskeletal soft tissue, Oncology, MR, Diagnostic procedure, Neoplasia
Authors:
J. Zhang, L. Ruan, S. Xu, B. QIAN; HANGZHOU/CN
DOI:
10.1594/ecr2013/C-1203
Results
Fig. 1: A 26-year-old female with recurrent DFSP of the frontal part.
Fig. 1: Sagittal T2WI with fat suppression shows a large higher signal mass at site of previous resection, which protrudes through skin.
Fig. 1 Five cases of DFSP involved the frontal part,
shoulder,
chest wall,
abdominal wall and the thigh respectively.
MR imaging demonstrated all lesions involving the skin and subcutaneous adipose tissue causing a focal protuberance of the skin with a lobular or nodular architecture.
Four cases of which were well defined,
and one case was ill-defined in appearance.
The signal characteristics of the lesion are nonspecific,
with signal similar to skeletal muscle on T1WI and similar to or greater than fat on T2WI.
Fat-suppressed T2WI or STIR images typically demonstrated high signal intensity.
Apparent homogeneous enhancement was seen in the lesions of three cases after intravenous gadolinium administration,
and two cases of which were detected linear extensions along the skin.
Typical histologic features included monomorphous spindle-shaped cells arranged in a storiform pattern on a background of fibrous stroma.