E4668. Baastrup Disease: Role of FDG PET/CT With Multimodality Imaging Correlation
Authors
Ali Piracha;
Rush University Medical Center
Pokhraj Suthar;
Rush University Medical Center
Sumeet Virmani;
Rush University Medical Center
Background
Baastrup disease (BD) also known as “kissing spine syndrome" or "interspinous bursitis," is a relatively common cause of lower back pain arising from the close approximation of two adjacent interspinous ligaments, secondary to degenerative changes. BD most commonly affects the L4-L5 levels, and its incidence increases with age. Imaging findings of BD on radiography, CT, and MRI is already explored. The uptake of FDG on PET/CT in BD can often be mistaken for metastatic lesions.
Educational Goals / Teaching Points
The purpose of this educational exhibit is to showcase intriguing cases of BD - a benign condition that frequently masquerades as metastatic lesions in medical imaging, especially on PET/CT scans. Through this, we aim to raise awareness and understanding of this often-misdiagnosed disease.
Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
In this educational exhibit, we will present interesting cases of BD, demonstrating its manifestations on FDG PET/CT with multimodal correlation, including MRI, CT, radiography, whole-body bone scans, and SPECT.
Conclusion
BD often mimics metastatic lesions on FDG PET/CT, leading to misdiagnoses. This exhibit showcases the vital role of multimodal imaging in diagnosing BD accurately, aiming to enhance understanding, minimize misdiagnoses, and improve patient care.
