Chiari malformation (kee-AH-ree mal-for-MAY-shun) is a condition in which brain tissue extends into the spinal canal. It occurs when part of the skull is misshapen or smaller than is typical, pressing on the brain and forcing it downward. Chiari malformation is uncommon, but increased use of imaging tests … See more Many people with Chiari malformation have no signs or symptoms and don't need treatment. Their condition is detected only when tests are performed for unrelated disorders. However, … See more Chiari malformation type 1 occurs when the section of the skull containing a part of the brain (cerebellum) is too small or is deformed, thus … See more In some people, Chiari malformation can become a progressive disorder and lead to serious complications. In others, there may be no associated symptoms, and no intervention is … See more There's evidence that Chiari malformation runs in some families. However, research into a possible hereditary component is still in its early phase. See more WebCongenital extrahepatic portosystemic shunt (CEPS) or Abernethy malformation is a rare condition in which splanchnic venous blood bypasses the liver draining directly into systemic circulation through a congenital shunt. Patients may develop hepatic encephalopathy (HE), pulmonary hypertension (PaHT), or liver tumors, among other complications.

Chiari malformation - Symptoms and causes - Mayo Clinic

WebThe incidence of ventriculoperitoneal shunt failure ranges from 25% to 40% at 1 year and 63% to 70% at 10 years [].Failure rates with ventriculoatrial and ventriculopleural shunts are slightly higher [].Patient presentation varies depending on patient age as well as the cause and acuity of failure [].Symptoms with the highest positive predictive value include nausea … WebA shunt is an abnormal communication between the right and left sides of the heart or between the systemic and pulmonary vessels, allowing blood to flow directly from one circulatory system to the ... philip fioret md

Vein of Galen malformation - Health Jade

WebDandy-Walker syndrome, or Dandy-Walker malformation, is a brain condition that develops before a baby is born. Babies with Dandy-Walker often don’t meet their developmental … WebPulmonary arteriovenous malformations (PAVMs) are structurally abnormal vessels that provide direct capillary-free communication between the pulmonary and systemic circulations ( Figure 1 ), and hence an anatomic “right-to-left” shunt ( Figure 2 ). Gas exchange, filtration, and other processing of systemic venous blood are impaired. WebJan 1, 2002 · Knowledge of the normal anatomy, most frequent variants, and congenital and acquired anomalies of the portal venous system is of great importance for liver surgery … philip fireman