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Challenge of the Unknowns—Unknown 4

Radiographic Findings and Differential Diagnosis

Click images to review films and listen to further audio discussion by Dr. Renee DeVries



The lumbar radiographs show marked posterior scalloping of the vertebral bodies from T12-L3. On the AP view note the marked thinning of the pedicles at the same levels. Metallic sutures in the right upper quadrant of the abdomen are indicative of previous abdominal surgery.


The most significant findings in this case are: extensive posterior vertebral body scalloping, and thinning of the pedicles. The differential diagnosis for posterior scalloping includes the following:

Normal variant

Spinal tumor



Ehler's Danlos Syndrome and Marfan's Disease



Click here for Diagnosis and Discussion


Introduction to Unknown Cases

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