Occipital Lobe Infarction due to Acute Hydrocephalus Secondary to Third Ventricle Colloid Cyst in a Child

نویسندگان

  • Nisar A. Wani
  • Parveen A. Lone
  • Syed Tariq
چکیده

Colloid cysts comprise 0.5 to 1% of intracranial tumors that are most commonly diagnosed in third to fifth decade of life.1,2 These benign tumors are generally seen in the anterosuperior portion of the third ventricle and are by far the most common of the intraventricular masses here.3,4 Colloid cysts are of endodermal (foregut) origin and are lined by pseudostratified, cuboidal, or columnar epithelial cells. Cysts may range in size from 3 to 40 mm and contain viscous, gelatinous contents with some cellular debris.1–4 Colloid cysts of the third ventricle are rare in children.5–8 Obstruction of the foramen of Monro by the colloid cyst in the anterosuperior portion of third ventricle may result in noncommunicating hydrocephalus, which may be complicated by central transtentorial herniation manifesting with brainstem compression and posterior cerebral artery infarction.5,6,9 We report an 11-year-old boy who presented with acute-onset headache, vomiting, and decreased level of consciousness. Imaging with computed tomography (CT) and magnetic resonance imaging (MRI) demonstrated acute hydrocephalus due to third ventricle colloid cyst with occipital lobe infarction resulting from transtentorial herniation.

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تاریخ انتشار 2016