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Table 1 Data of benign and malignant ovarian sex cord-stromal tumors

From: The value of MRI for differentiating benign from malignant sex cord-stromal tumors of the ovary: emphasis on diffusion-weighted MR imaging

  Number (tumors/patients) Patient age (years) Mean size (cm) Mean ADC value (×10−3 mm2/s)
Benign (28/29)#    
 Purely stromal tumors
  Fibroma 10 50 (24–81) 6.1 0.470 ± 0.389
  Cellular fibroma 2 64 (59–68) 5.2 0.794 ± 0.159
 Thecoma 7 64 (48–86) 10.2 1.207 ± 0.350
  Fibrothecoma 6 55 (41–70) 11.9 1.150 ± 0.275
  Sclerosing stromal tumor 4 28 (26–30) 5.2 2.291 ± 0.423
Malignant (13/13)    
 Purely sex cord tumors
  Granulosa cell tumor 7 41 (27–55) 13.2 0.694 ± 0.111
  Sex cord tumor with annular tubule 1 26 2.4 0.975
 Mixed Sex cord-stromal tumors
  Sertoli-leydig tumor 4 41 (22–56) 13.0 1.009 ± 0.151
  Granulosathecoma 1 70 8.0 0.773
  1. # One of the 28 patients in benign group had bilateral ovarian sex cord-stromal tumors (fibroma and fibrothecoma)