Multiple Spinal Extradural Cysts Research Articles

Multiple spinal extradural cysts causing progressive paraparesia: case report and review of literature

AbstractMultiple meningeal extradural cysts are extremely rare. The clinical presentation varies from asymptomatic patients to important symptoms due to spinal cord compression. This article reports the case of a girl with multiple meningeal extradural cysts with progressive paraparesis and hypoesthesia on inferior limbs. The MRI showed multiple extradural cysts between C7 and L1. A partial resection was made at the cystis, reflecting a improve at the postoperative follow up of the patient. The management of asymptomatic cases is usually followed up clinical and radiologically. At the management of the symptomatic cases, the resection of the cysts is the most indicated treatment, even for patients with a long-standing history of compression. However the partial removal has as good results as the total one. The authors review the literature and show a subtotal resection of the cysts did not change the evolution of the presentation.

Extradural developmental dural root sleeve cyst presenting as a lumbar paraspinal mass with renal compression in an infant

Spinal extradural cysts do not normally present as a visible paraspinal mass or cause compression of the abdominal organs. The authors describe the case of a 9-month-old boy with multiple spinal extradural cysts. The largest of these cysts was along the right L-2 nerve root with significant extraspinal extension resulting in a visible slow-growing swelling in the right paraspinal region and radiological evidence of compression of the right kidney with hydronephrosis. Another large cyst along the left T-12 root caused radiologically evident compression of the left kidney but to a lesser degree. The patient also had monoparesis of the left lower limb and phenotypic features of Noonan syndrome. The authors performed marsupialization of the cysts, as well as repair of the fistula between the subarachnoid space and the cyst on the right side along the L-2 root and on the left side along the T-12 root. At 1-year follow-up, there was no paraspinal mass and the lower limbs exhibited normal power. Magnetic resonance imaging confirmed marked reduction in the size of the cysts and relief of the renal compression. To the authors' knowledge, their patient is the youngest reported in literature to have a spinal extradural cyst and also the first with the cyst presenting as a paraspinal mass.