Postoperative discal pseudocyst and its similarities to discal cyst: A case report

Figure 1 Magnetic resonance imaging of case 1. A: Pre-surgical magnetic resonance imaging (MRI) showing lumbar disc herniation at L4-5; B: Post-surgical MRI confirming complete removal of the herniated disc fragment; C: Re-examination MRI revealed a cystic lesion at the surgical site with a communication stalk between the cyst and inner disc (arrow); D: Follow-up MRI after 6 mo demonstrating complete spontaneous regression of the lesion.