Macrencephaly

Macrencephaly

Macrencephaly (from Greek "makros" - big, large and "enkephalos" - brain) is a condition present at or soon after birth in which the brain is abnormally large. Generally this is the case when its measures are statistically more than 97% of the population.

The brain can become larger due to certain diseases like Alexander disease, later phases of the Tay-Sachs disease, and spongy degeneration of infancy. The large growth of the brain is usually not caused by the formation of tumors.

Macrencephaly is also known as macrencephalia and macroencephaly.

"See also": cephalic disorders.


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Look at other dictionaries:

  • macrencephaly — macrencephaly, n. The condition of having an abnormally large braincase. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • macrencephaly — mac·ren·ceph·a·ly (mak″rən sefґə le) [macro + Gr. enkephalos brain] overgrowth of the brain …   Medical dictionary

  • macrencephaly — noun an abnormally large braincase • Derivationally related forms: ↑macrencephalic, ↑macrencephalous • Hypernyms: ↑abnormality, ↑abnormalcy …   Useful english dictionary

  • macrencephaly, macrencephalia — Hypertrophy of the brain; the condition of having a large brain. [macro + G. enkephalos, brain] …   Medical dictionary

  • macrencephalic — adjective having a large brain case • Syn: ↑macrencephalous • Pertains to noun: ↑macrencephaly (for: ↑macrencephalous), ↑macrencephaly • Derivationally related forms: ↑ …   Useful english dictionary

  • macrencephalous — adjective having a large brain case • Syn: ↑macrencephalic • Pertains to noun: ↑macrencephaly, ↑macrencephaly (for: ↑macrencephalic) • Derivationally related forms: ↑ …   Useful english dictionary

  • Megalencephaly — Also called macrencephaly, a condition in which there is an abnormally large, heavy, and usually malfunctioning brain. By definition, the brain weight is greater than average for the age and gender of the child. Head enlargement may be evident at …   Medical dictionary

  • Macrencephalic — Mac ren*ce*phal ic, Macrencephalous Mac ren*ceph a*lous, a. [Macro + encephalic, encephalous.] Of or pertaining to macrencephaly; having a large brain. [1913 Webster] …   The Collaborative International Dictionary of English

  • Macrencephalous — Macrencephalic Mac ren*ce*phal ic, Macrencephalous Mac ren*ceph a*lous, a. [Macro + encephalic, encephalous.] Of or pertaining to macrencephaly; having a large brain. [1913 Webster] …   The Collaborative International Dictionary of English

  • List of neurological disorders — This is a list of major and frequently observed neurological disorders (e.g., Alzheimer s disease), symptoms (e.g., back pain), signs (e.g., aphasia) and syndromes (e.g., Aicardi syndrome). Contents: Top · 0–9 A B C D E F G H I J K L M N O P …   Wikipedia

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