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CASE REPORT
Occipital calcified pseudoneoplasms of the neuraxis (CAPNON): understanding a rare pathology
  1. Kirill Lyapichev1,
  2. Amade Bregy2,
  3. Ashish H Shah2,
  4. Kinjal Shah1,
  5. Mehul B Desai3,
  6. Carol Petito1,
  7. Ricardo J Komotar2
  1. 1Department of Pathology, University of Miami Miller School of Medicine, Miami, Florida, USA
  2. 2Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
  3. 3Department of Radiology, University of Miami Miller School of Medicine, Miami, FL, USA
  1. Correspondence to Dr Ricardo Jorge Komotar, RKomotar{at}med.miami.edu

Summary

Calcifying pseudoneoplasms of the neuraxis (CAPNON) are rare and typically benign lesions that can occur anywhere within the central nervous system. Aetiology of this lesion is unclear and surgical removal is usually curative. We present a 24-year-old male patient with a history of occipital migraines who was admitted after sudden onset seizure and loss of vision. CT and MRI demonstrated a small calcifying lesion in the right temporo-occipital lobe. The patient underwent gross total resection of the tumour mass and pathological analysis revealed a CAPNON. The preoperative diagnosis of CAPNON remains difficult due to unspecific radiological findings, yet a clear understanding of characteristic pathological findings and prognosis of CAPNON remains paramount.

https://doi.org/10.1136/bcr-2014-206855

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