Diagnostic Considerations for Schmorl's Nodes

Imaging and Differential Diagnosis

On PET/CT imaging, recent Schmorl's nodes in direct contact with the intersomatic disk with an osteosclerotic rim can exhibit uptake and may be confused with malignant lesions, highlighting the importance of using MRI characteristics and low-dose CT to differentiate, as recommended by the European Journal of Nuclear Medicine and Molecular Imaging 1
Low-dose CT images can help differentiate Schmorl's nodes from malignancy or other pathology, according to the European Journal of Nuclear Medicine and Molecular Imaging 1
It is crucial not to confuse new Schmorl's nodes with bone metastases in patients with malignancy, and to use MRI characteristics and low-dose CT to differentiate, as suggested by the European Journal of Nuclear Medicine and Molecular Imaging 1
The European Journal of Nuclear Medicine and Molecular Imaging also advises not to assume all vertebral uptake on PET/CT represents malignancy in elderly patients, as degenerative changes including Schmorl's nodes can cause false-positive findings 1

Schmorl's nodes are most commonly found in the lumbar spine, particularly associated with mechanical loading and impact stress, and are often associated with activities involving repetitive spinal loading such as horseback riding, chariot driving, and wagon/cart driving 2, 3
The American College of Sports Medicine recommends considering the patient's activity level and occupation when planning treatment for Schmorl's nodes, as certain activities may exacerbate the condition 2, 3