English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Pilocytic astrocytoma(PA)is a benign glioma that usually occurs in children and adolescents. We present with a very rare case of PA that arose from the cervicomedullary junction in an adult, whose onset was obstructive hydrocephalus caused by intratumoral hemorrhage. A 51‒year‒old man presented with headache, blurred vision, and difficulty in gait over a week. Computed tomography revealed a high‒density mass at the dorsal medulla, associated with ventricular dilatation. Magnetic resonance imaging(MRI) revealed a heterogeneously enhanced mass lesion at the dorsal cervicomedullary junction, with significant brain stem compression. Intratumoral hemorrhage was also recognized by T2* image. The sharply demarcated appearance on MRI resembled an extra axial tumor such as foramen magnum neurinoma. The patient underwent surgical extirpation of the tumor via a midline suboccipital approach with C1 laminectomy. The tumor was subtotally removed and the postoperative course was uneventful with resolution of the hydrocephalus. The histopathological study demonstrates typical findings of PA with a mixture of recent and previous hemorrhage. Periodic MRIs reveal no local recurrence, and no leptomeningeal dissemination, during the 2‒year follow‒up period. Finally, the clinical, neuroradiological, and pathophysiological characteristics of this rare case are discussed. (Received August 24, 2017;accepted November 1, 2017)

Hemorrhagic Onset of Dorsally Exophytic Cervicomedullary Junction Pilocytic Astrocytoma in an Adult : A Case Report and Literature Review