PMC4898075_01
30-year-old female with sacral and lower back postpartum pain. The radiologist reading the lateral radiograph of the sacrum and coccyx noted a subtle cortical irregularity along the anterior cortical margin of the S3-S4 segment intervertebral level on the lateral view, suggesting possible nondisplaced fracture.
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Plain films of the pelvis obtained 29 days after delivery showed subtle irregularity along the anterior cortical margin of the S3-S4 segment intervertebral level, which could represent a possible nondisplaced fracture (Figure 1A, Figure 1B).
30-year-old female with sacral and lower back postpartum pain. The radiologist reading the outlet radiograph of the sacrum and coccyx noted a subtle cortical irregularity along the anterior cortical margin of the S3-S4 segment intervertebral level on the lateral view, suggesting possible nondisplaced fracture.
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CT examination demonstrated bilateral sclerosis and callus formation in the lower sacrum (Figure 2A, Figure 2B).