loading...| Preferred Name |
Megalencephaly |
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| Synonyms |
Macrencephaly Enlarged brain |
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| Definitions |
Megalencephaly is defined as fronto-occipital diameter above two standard deviations of the mean for the patient's age because of an oversized brain parenchyma. This is different from macrocephaly, which is defined by an enlarged head circumference and therefore accounts also for the size of the extra-axial spaces. Diffuse enlargement of the entire cerebral hemispheres leading to macrocephaly (with or without overlying cortical dysplasia). |
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| ID |
http://purl.obolibrary.org/obo/HP_0001355 |
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| comment |
Megalencephaly is defined as fronto-occipital diameter above two standard deviations of the mean for the patient's age because of an oversized brain parenchyma. This is different from macrocephaly, which is defined by an enlarged head circumference and therefore accounts also for the size of the extra-axial spaces. |
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| database_cross_reference |
MSH:D058627 SNOMEDCT_US:19410003 UMLS:C0221355 |
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| definition |
Diffuse enlargement of the entire cerebral hemispheres leading to macrocephaly (with or without overlying cortical dysplasia). |
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| has broad synonym |
Enlarged brain |
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| has exact synonym |
Macrencephaly |
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| id |
HP:0001355 |
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| label |
Megalencephaly |
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| notation |
HP:0001355 |
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| prefLabel |
Megalencephaly |
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| subClassOf |