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292 Possible Causes for Occasional Hydrocephalus

  • Achondroplasia

    Although in literature achondroplasia has been described profusely, reports on achondroplastic twins are limited. We present two cases of monozygotic female twins with achondroplasia, who underwent limb-lengthening surgical procedure with external fixation in the following five steps: tibia, femur, tibia; femur, homer.[…][]

  • Pineal Gland Cyst

    Imaging studies showed a uniform hypodense or hypointense, nonenhancing pineal mass with occasional peripheral calcification and associated with hydrocephalus, aqueductal[] The mass may compress the tectum and distort the proximal aqueduct; occasionally a large cyst may occlude the aqueduct.[] […] enlarge the pineal gland and compress adjacent structures such as the superior colliculi of the quadrigeminal plate and the aqueduct of the midbrain, producing hydrocephalus[]

  • Hydrocephalus

    Occasionally the hydrocephalus may be due to an over production of CSF. The effect of the swelling is to put pressure on the surrounding brain tissue.[] Abstract OBJECTIVE Patients treated for Chiari I malformation (CM-I) with posterior fossa decompression (PFD) may occasionally and unpredictably develop postoperative hydrocephalus[] Occasionally, adults with hydrocephalus are treated using a procedure referred to as third ventriculostomy.[]

  • Dementia

    Occasionally, EEG is useful (eg, to evaluate episodic lapses in attention or bizarre behavior).[] Neuroimaging can identify potentially reversible structural disorders (eg, normal-pressure hydrocephalus, brain tumors, subdural hematoma) and certain metabolic disorders[]

  • Pilomyxoid Astrocytoma

    PMA occasionally causes obstructive hydrocephalus (38.5%) and only rarely shows radiographic evidence of central necrosis (7.7%).[] Occasional Peritumoral edema Absent Treatment The overall oncologic management of children with low-grade astrocytomas, including PMA, is extremely controversial and greatly[] Feature Typical Finding Well-circumscribed Yes Location Variable/(primarily hypothalamus) T1 signal Isointense Enhancement pattern Homogeneous Composition Solid Necrosis Rare Hydrocephalus[]

  • Pediatric Arterial Ischemic Stroke

    Occasional neonates suffer a hemorrhage or hydrocephalus but more typically hydro-cephalus occurs a bit later during infancy, particularly in infants with a posterior fossa[]

  • X-linked Parkinsonism-Spasticity Syndrome

    Neuroimaging shows ventriculomegaly out of proportion to atrophy. [72] Occasionally patients with hydrocephalus and raised pressure present with parkinsonism. [73] Psychogenic[]

  • Ependymoma

    Subependymoma is a benign condition, but may occasionally cause disruption of CSF flow and hydrocephalus.[] There may also be evidence of obstructive hydrocephalus on MRI due to blockage of flow of CSF by the tumor.[] While most ependymomas are localized, these tumors can occasionally spread to other parts of the brain or spine.[]

  • Alexander Disease

    Other findings include hyperreflexia and pyramidal signs, ataxia, and occasional hydrocephalus secondary to aqueductal stenosis.[] hydrocephalus secondary to aqueductal stenosis.[] The juvenile form usually presents between ages four and ten years, occasionally in the mid-teens.[]

  • Ruptured Cerebral Aneurysm

    , hydrocephalus (accumulation of cerebrospinal fluid in the brain).[] […] aneurysm presents without rupture, some symptoms include seizures, double vision, progressive blindness in one eye, numbness on one side of the face, difficulty speaking, or, occasionally[]

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