macrocephaly

macrocephaly

 [mak″ro-sef´ah-le]

megalocephaly. adj., adj macroceph´ous.

Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

meg·a·ceph·a·ly

(meg'ă-sef'ă-lē),

A condition, either congenital or acquired, in which the head is abnormally large; usually applied to an adult cranium with a capacity of over 1450 mL.

Synonym(s): leontiasis ossea, macrocephaly, macrocephalia, megacephalia, megalocephaly, megalocephalia, Virchow disease

[mega- + G. kephalē, head]

Farlex Partner Medical Dictionary © Farlex 2012

macrocephaly

(măk′rō-sĕf′ə-lē) also

macrocephalia

(-sə-fā′lē-ə, -fāl′yə)

n.

Abnormal largeness of the head. Also called megacephaly, megalocephaly.

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mac′ro·ce·phal′ic (-sə-făl′ĭk), mac′ro·ceph′a·lous adj.

The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

macrocephaly

An abnormally large head and/or brain; in children, macrocephaly is defined as an occipitofrontal circumference of > 3 SD ≥ the mean.

DiffDx—non-hydrocephalic causes of macrocephaly
Benign familial form (siblings also have large heads), achondroplasia, Banayan syndrome, cerebral gigantism (with macrosomia or Sotos syndrome), cutis marmorata telangiectatica congenita, fragile X syndrome, Klippel-Trenauny-Weber syndrome, mucopolysaccharidosis, neurofibromatosis, Weaver syndrome.

Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

macrocephaly

↑ head circumference, megalocephaly Pediatrics An abnormally big head/brain; in children, macrocephaly is defined as an occipitofrontal circumference of > 3 SD ≥ the mean; in adults, macrocephaly is any brain weighing > 1800 g, due to expansion of any subdural component–eg, cerebral tissue, liquid, blood, tumor or storage disease DiffDx–non-hydrocephalic causes Benign familial form–sibs also have large heads, achondroplasia, Banayan syndrome, cerebral gigantism–with macrosomia or Sotos syndrome, cutis marmorata telangiectatica congenita, fragile X syndrome, Klippel-Trenauny-Weber syndrome, mucopolysaccharidosis, neurofibromatosis, Weaver syndrome

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

meg·a·ceph·a·ly

(meg'ă-sef'ă-lē)

A condition, either congenital or acquired, in which the head is abnormally large; usually applied to an adult cranium with a capacity of over 1450 mL.
Synonym(s): macrocephaly, macrocephalia, megalocephaly, megalocephalia.

[mega- + G. kephalē, head]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012