منابع مشابه
Megalencephaly and Macrocephaly.
Megalencephaly is a developmental disorder characterized by brain overgrowth secondary to increased size and/or numbers of neurons and glia. These disorders can be divided into metabolic and developmental categories based on their molecular etiologies. Metabolic megalencephalies are mostly caused by genetic defects in cellular metabolism, whereas developmental megalencephalies have recently bee...
متن کاملMacrocephaly Syndromes
MACROCEPHALY SYNDROMES Charles A. Williams, MD INTRODUCTION Macrocephaly is defined as a head circumference which is greater than 2 standard deviations larger than the average for a given age and sex. It refers to an abnormally large head inclusive of the scalp, cranial bone and intracranial contents. Macrocephaly may be due to megalencephaly (true enlargement of the brain) or due to other cond...
متن کاملCystic leukoencephalopathy without megalencephaly.
Division of Child Neurology / Department of Neurology and Neurosurgery, Federal University of Sao Paulo, Sao Paulo SP, Brazil (UNIFESP-EPM): Resident, Department of Pediatrics, UNIFESP-EPM; Resident, Department of Radiology, Hospital Heliopolis, Sao Paulo SP, Brazil; Resident, Division of Child Neurology / Department of Neurology and Neurosurgery, UNIFESP-EPM; Associated Physician, Division of ...
متن کاملTemporal lobe, autism, and macrocephaly.
BACKGROUND AND PURPOSE Because of increased prevalence of macrocephaly in autism, head size must be controlled for in studies that examine volumetric findings of the temporal lobe in autistic subjects. We prospectively examined temporal lobe structures in individuals with autism who were normocephalic or macrocephalic (head circumference > 97th percentile) and in control subjects who were normo...
متن کاملA clinical review on megalencephaly
Megalencephaly and macrocephaly present with a head circumference measurement 2 standard deviations above the age-related mean. However, even if pathologic events resulting in both megalencephaly and macrocephaly may coexist, a distinction between these two entities is appropriate, as they represent clinical expression of different disorders with a different approach in clinical work-up, overal...
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ژورنال
عنوان ژورنال: Seminars in Neurology
سال: 2015
ISSN: 0271-8235,1098-9021
DOI: 10.1055/s-0035-1552622