Petrous apex cephalocoele: contribution of coexisting intracranial pathologies to the aetiopathogenesis

M Çavusoglu1, S Duran, H G Hatipoglu

  • 1Department of Radiology, Ankara Numune Education and Research Hospital, Ankara, Turkey.

Abstract

Insights

This study reveals that petrous apex cephalocoele (PAC) often coexists with other intracranial pathologies. These coexisting conditions may contribute to the development of PAC, potentially involving cerebrospinal fluid imbalance.

Area of Science:

  • Neurology
  • Radiology
  • Neurosurgery

Background:

  • Petrous apex cephalocoele (PAC) is a rare condition.
  • Understanding its aetiopathogenesis is crucial for diagnosis and management.

Purpose of the Study:

  • To illustrate MRI findings of petrous apex cephalocoele (PAC).
  • To identify intracranial pathologies coexisting with PAC.
  • To explore the role of these coexisting pathologies in PAC aetiopathogenesis.

Main Methods:

  • Retrospective analysis of 13 patients with PAC (2012-2013).
  • Review of cranial and sellar region MRI examinations.
  • Evaluation of lesion characteristics and coexisting pathologies.

Main Results:

  • PAC lesions were posterolateral to Meckel's cave and isointense with CSF.
  • All lesions communicated with Meckel's cave.
  • Commonly observed coexisting pathologies included aneurysmal dilatation, empty sella, pituitary masses, arachnoid cysts, and herniation.

Conclusions:

  • The presence of coexisting intracranial pathologies suggests a link to cerebrospinal fluid imbalance.
  • Intracranial hypertension may play a role in the development of PAC.
  • This study highlights the contribution of associated pathologies to PAC aetiopathogenesis.

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