Ke D, Deng X, Li X, Li J, Hui X. Calcified extra-axial cavernous malformation arising from lower cranial nerves: A case report and literature review.
Medicine (Baltimore) 2021;
100:e24566. [PMID:
33592913 PMCID:
PMC7870219 DOI:
10.1097/md.0000000000024566]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 01/14/2021] [Indexed: 02/05/2023] Open
Abstract
RATIONALE
Extra-axial cavernous malformations (ECMs) arising from cranial nerves (CNs) are rare. Complete "en bloc" lesion resection and hemosiderin-stained tissue preservation remain the standard treatment, while a different strategy may be needed when the lesion is highly calcified . We report the 3rd calcified ECM-CN and review the clinical features and surgical strategy for this rare condition considering previous literature.
PATIENT CONCERNS
We present a 52-year-old woman with a calcified lesion located in the right lower 1/3 of the cerebellopontine angle.
DIAGNOSIS
The diagnosis was calcified ECM-CNs according to the pathological and radiological features.
INTERVENTIONS
A posterior midline craniotomy was performed, and piecemeal resection of the lesion was carried out. Subtotal resection of the lesion was achieved with a small piece left in situ.
OUTCOMES
No symptom or lesion-related recurrence was found during 28 months of follow-up.
LESSONS
Calcified ECM-CNs are unique cavernous malformations arising from CNs. Piecemeal resection and subtotal or near-total excision are 2 major aspects that differ from the surgical strategy for general ECM-CNs.
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