Postoperative Cerebellar Cyst with Pseudomeningocele After Tumor Removal at the Craniovertebral Junction
| Autor: | Yoshinori Higuchi, Maidinamu Yakufujiang, Shiro Ikegami, Yasuo Iwadate, Hirokazu Sunaoka, Yousuke Watanabe |
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| Rok vydání: | 2019 |
| Předmět: |
Male
medicine.medical_specialty Accessory nerve medicine.medical_treatment Fistula Meningocele 03 medical and health sciences 0302 clinical medicine Postoperative Complications Cerebellar hemisphere Cerebellum parasitic diseases medicine Humans Cyst Central Nervous System Cysts Aged Skull Base Spinal Neoplasms medicine.diagnostic_test business.industry Laminectomy Magnetic resonance imaging medicine.disease Pseudomeningocele 030220 oncology & carcinogenesis Cervical Vertebrae Surgery Neurology (clinical) Radiology Complication business 030217 neurology & neurosurgery |
| Zdroj: | World neurosurgery. 130 |
| ISSN: | 1878-8769 |
| Popis: | Background Cerebellar cyst formation after surgery is uncommon, and few cases of this condition have been previously reported. These cases had an intraparenchymal cyst in the cerebellar hemisphere that required surgical fenestration of the cyst. We herein present a rare case of a postoperative cerebellar cyst with pseudomeningocele and magnetic resonance images indicating a fistula between the cyst and pseudomeningocele. Case Description A patient presented with an intraparenchymal cyst and surrounding edema in the cerebellar hemisphere that developed after a C1 laminectomy and a small suboccipital craniectomy for the removal of an accessory nerve neurinoma at the craniovertebral junction. Fast imaging employing steady-state acquisition images identified the fistula connecting the cyst and extradural cerebrospinal fluid retention. Conservative management with administration of dexamethasone induced spontaneous regression of the cyst, and no recurrence had occurred by the 1-year follow-up. Conclusions Watertight dural closure is important for the prevention of this rare complication after posterior fossa surgery. However, an arachnoid tear on the cerebellar fissure and adjacent dural defect are necessary antecedents for this rare condition. High-resolution fast imaging employing steady-state acquisition images could provide additional information for the etiology of postoperative cerebellar cyst. |
| Databáze: | OpenAIRE |
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