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Table 1 The features of DF lesions on conventional MR images

From: Radiological evaluation of deep soft tissue fibromatosis, the characteristic MR criteria on conventional and corresponding diffusion-weighted images

 Number of lesions (percentage)
Site and origin
 Anterior abdominal wall3
 Extra-abdominal
  Neck1
  Chest wall1
  Shoulder girdle and upper arm9
  Forearm and wrist3
  Pelvis and thigh21
  Popliteal fossa and calf2
 Fascia6 (15%)
 Muscle34 (85%)
Margins
 Ill defined18 (45%)
 Partially defined14 (35%)
 Well defined8 (20%)
Size (ranged from 0.8 to 60 cm in maximum diameter, the mean tumor size 10.7 cm)
Signal (Table 2)
Low signal bands38 (95%)
Fascial tail sign33 (82.5%)
Extra-compartmental extension24 (60%)
Bone invasion7 (17.5%)
Neurovascular compromise19 (47.5%)