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| | University of Chicago Comer Children's Hospital: Hydrocephalus |
 | | Hydrocephalus is a condition in which there is a lack of absorption, blockage of flow, or overproduction of the cerebral spinal fluid (CSF) that is found inside the ventricles (fluid-filled areas) of the brain. |
 | | Hydrocephalus may be diagnosed before birth by prenatal ultrasound, a diagnostic imaging technique which uses high-frequency sound waves and a computer to create images of blood vessels, tissues, and organs. |
 | | In many cases, hydrocephalus does not develop until the third trimester of the pregnancy and, therefore, may not be seen on ultrasounds performed earlier in pregnancy. |
| www.uchicagokidshospital.org /online-library/content=P02605 (1048 words) |
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