communicating hydrocephalus


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Related to communicating hydrocephalus: communicating hydrocele

com·mu·ni·cat·ing hy·dro·ceph·a·lus

type of hydrocephalus in which there is an abnormality in cerebrospinal fluid absorption; there is no obstruction to cerebrospinal fluid flow in the ventricular system or where the cerebrospinal fluid passes into the spinal canal.

communicating hydrocephalus

Normal pressure hydrocephalus Neurology An enlargement of cerebral ventricles due to ↑ secretion and/or ↓ production and absorption of CSF, where the ventricular conduits are open, and the fluid moves freely into the spinal subarachnoid space, but is blocked by obliteration of the subarachnoid cisterns around the brainstem or subarachnoid spaces over the cerebral convexities Etiology Arnold-Chiari malformation, infections–eg, bacterial meningitis, toxoplasmosis, CMV, or other viral meningitides, subarachnoid hemorrhage, ↑ production of CSF–eg, choroid plexus papilloma, Hurler syndrome due to fibrosis in the subarachnoid space, or hypervitaminosis A

com·mu·ni·cat·ing hy·dro·ceph·a·lus

(kŏ-myūn'i-kāt-ing hī'drō-sef'ă-lŭs)
Type of hydrocephalus in which there is an abnormality in cerebrospinal fluid absorption; there is no obstruction to cerebrospinal fluid flow in the ventricular system or where the cerebrospinal fluid passes into the vertebral canal.
References in periodicals archive ?
Postoperative communicating hydrocephalus in patients with supratentorial malignant glioma.
The patient initially presented with altered mentality with MRI findings of leptomeningeal enhancement of basal cisterns and communicating hydrocephalus. Characteristic basal meningeal inflammation resulting in leptomeningeal enhancement in basal cisterns is the most typical feature of gadolinium-enhanced MR imaging of tuberculous meningitis.
These findings suggest that the gray matter of left temporal and frontal lobe and white matter of corpus callosum are the most vulnerable regions in children with mild-to-moderate communicating hydrocephalus, which may happen before the behavior changes.
Axial T2 (A), DWI (B), FLAIR (C), and postcontrast T1-weighted (D) images show significant interval improved leptomeningeal enhancement, resolution of epidural collection (not shown), and interval new communicating hydrocephalus.
As to purulent meningitis, mater enhancement is not common in enhancement scanning, and only few cases were observed with inorganic adhesion and communicating hydrocephalus because of effusion.
In 32 patients with communicating hydrocephalus maximum of 19 patients had meningitis, 9 cases had HIE, 2 patients had infarcts and 1 each of DWS and TORCH.
MRI studies of his head again showed the expansile, poorly demarcated mass in the pons with minimal heterogenous enhancement and severe communicating hydrocephalus (Figure 1).
Communicating hydrocephalus, by contrast, shows dilation of the entire ventricular system.
Metaplastic change in the leptomeninges leading to communicating hydrocephalus is characteristic of vitamin A deficiency in other species.
In communicating hydrocephalus, the CSF moves freely around the ventricles, but it is blocked after it attempts to exit the ventricles.
The CT scan revealed communicating hydrocephalus. The lumbar puncture revealed slightly cloudy cerebrospinal fluid (CSF) with the following CSF results: red blood cells = 125; white blood cells (WBCs) = 615 (82% lymphocytes, 16% monocytes, and 2% polys); protein = 278 mg/dl; and glucose-13 mg/dl.

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