Pachygyria

Overview

Type of disease: Rare conditions

Pachygyria is a developmental condition due to abnormal migration of nerve cells (neurons) in the developing brain and nervous system. With pachygyria, there are few gyri (the ridges between the wrinkles in the brain), and they are usually broad and flat. The condition is also known as “incomplete lissencephaly.” Pachygyria may occur alone (isolated) or as part of various underlying syndromes. Symptoms vary among affected people and may include moderate to severe developmental delay, seizures, poor muscle tone and control, feeding or swallowing difficulties, and small head size (microcephaly). In most cases it is not inherited, but various inheritance patterns have been reported. Treatment is symptomatic and supportive. Source: Genetic and Rare Diseases Information Center (GARD), supported by ORDR-NCATS and NHGRI.

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