Dural-Based Cavernous Malformation at the Cerebral Convexity: Report of Two Pediatric Patients.

Dural-Based Cavernous Malformation at the Cerebral Convexity: Report of Two Pediatric Patients.

World Neurosurg. 2018 Jan 10;:

Authors: Li G, Zhai X, Zhang Y, Liang P, Wu X, Hou K

Abstract
BACKGROUND: Intracranial (cavernous malformations) CMs are usually located at the cerebral parenchyma, dural-based CMs outside the middle fossa are rarely reported. To our knowledge, dural-based CMs located at the cerebral convexity are even rarer that only two pediatric cases were ever reported. In this report, we present two extremely rare cases of dural-based CMs at the cerebral convexity in pediatric patients. The clinical course, radiological and pathological features, treatment, and follow-up are described.
CASE DESCRIPTION: The first case is a 6-year-old boy who presented with headache and vomiting and was found to have an acute subdural hematoma and space occupying lesion. Intraoperative findings and histological examination were consistent with a CM. He experienced an uneventful postoperative recover. The second case is a 43-day-old female neonate who presented with a progressively enlarging neoplasm at the right occipital region since her birth. Head CT performed on admission showed a slight hyperdense occupying lesion communicating between the intra and extra-cranial cavity through a skull defect. The lesion was resected en bloc and histological examination was in accord with a CM.
CONCLUSIONS: The clinical manifestations and radiological characteristics of dural-based CMs are non-specific. Unlike that of their cerebral parenchymal counterparts, the radiological appearance of dural-based CMs is confusing and misleading. Surgical resection is the primary treatment selection for dural-based CMs. In cases with no close relationship to dural sinuses, complete surgical resection with minimal blood loss and few neurological deficits could be easily achieved.

PMID: 29331747 [PubMed - as supplied by publisher]

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