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Table 1 Frequency of prenatal ultrasound MMC diagnosis according to the detection time and the level of lesion.

From: The prenatal ultrasonographic detection of myelomeningocele in patients referred to Children's Hospital Medical Center: a cross sectional study

Level of MMC Diagnosed Undiagnosed Total
  1st trimester n (%) 2nd trimester n (%) 3rd trimester n (%) n (%) n (%)
Cervical/Cervicothoracic 0 (0) 0 (0) 0 (0) 5 (100) 5 (100)
Thoracic/Thoracolumbar 2 (6.6) 2 (6.6) 8 (26.8) 18 (60) 30 (100)
Lumbar/Lumbosacral/Sacral 0 (0) 8 (8) 13 (13) 79 (79) 100 (100)
Total 2 (1.4) 10 (7.4) 21 (15.5) 102 (75.5) 135*(100)
  1. * One patient was omitted due to double MMC sacs in cervical and sacral regions that could not be placed in this categorization.