Postlaminectomy ossified extradural pseudocyst. Case report

J Neurosurg. 1990 Nov;73(5):785-7. doi: 10.3171/jns.1990.73.5.0785.

Abstract

A large ossified spurious meningocele accompanied by recurrent lumbar disc herniation occurred 7 years after posterior intervention for laminectomy and discectomy in a 53-year-old man. The cyst wall, histologically composed of mature bone tissue, was sparsely covered with connective tissue and lined with fibrocyte- or fibroblast-like cells on the inside. The ossified pseudocyst was presumed to have originated from a minute defect in the dura mater which occurred at the time of the first operation.

Publication types

  • Case Reports

MeSH terms

  • Calcinosis / etiology*
  • Calcinosis / pathology
  • Calcinosis / surgery
  • Humans
  • Intervertebral Disc Displacement / pathology
  • Intervertebral Disc Displacement / surgery
  • Laminectomy* / methods
  • Lumbar Vertebrae / pathology
  • Lumbar Vertebrae / surgery
  • Male
  • Meningocele / etiology*
  • Meningocele / pathology
  • Meningocele / surgery
  • Middle Aged
  • Postoperative Complications*