Book contents
- Perinatal Neuropathology
- Perinatal Neuropathology
- Copyright page
- Contents
- Preface
- Acknowledgments
- Abbreviations
- Section I Techniques and Practical Considerations
- Section 2 Human Nervous System Development
- Neuroanatomic Site Development
- Growth Parameters
- Chapter 26 Head Size and Brain Weight
- Section 3 Stillbirth
- Section 4 Disruptions / Hypoxic-Ischemic Injury
- Section 5 Malformations
- Section 6 Perinatal Neurooncology
- Section 7 Spinal and Neuromuscular Disorders
- Section 8 Eye Disorders
- Section 9 Infections: In Utero Infections
- Section 10 Metabolic / Toxic Disorders: Storage Diseases
- Section 11 Forensic Neuropathology
- Appendix 1 Technical Considerations in Perinatal CNS
- Index
- References
Chapter 26 - Head Size and Brain Weight
from Growth Parameters
Published online by Cambridge University Press: 07 August 2021
- Perinatal Neuropathology
- Perinatal Neuropathology
- Copyright page
- Contents
- Preface
- Acknowledgments
- Abbreviations
- Section I Techniques and Practical Considerations
- Section 2 Human Nervous System Development
- Neuroanatomic Site Development
- Growth Parameters
- Chapter 26 Head Size and Brain Weight
- Section 3 Stillbirth
- Section 4 Disruptions / Hypoxic-Ischemic Injury
- Section 5 Malformations
- Section 6 Perinatal Neurooncology
- Section 7 Spinal and Neuromuscular Disorders
- Section 8 Eye Disorders
- Section 9 Infections: In Utero Infections
- Section 10 Metabolic / Toxic Disorders: Storage Diseases
- Section 11 Forensic Neuropathology
- Appendix 1 Technical Considerations in Perinatal CNS
- Index
- References
Summary
Head size is normally determined by brain growth. The brain may be abnormally small following an in utero or perinatal destructive processes or as a consequence of various genetic conditions. Conversely, the brain may grow to an abnormally large size in certain genetic conditions or the total intracranial contents may be increased in the circumstance of cerebrospinal fluid accumulation (hydrocephalus) or tumor. Small head is called microcephaly, and small brain is microencephaly (or micrencephaly). Large head is called macrocephaly, and large brain is called megalencephaly. Deviation in head size from normal ranges should alert the clinician or pathologist to the possibility of a brain abnormality.
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- Perinatal Neuropathology , pp. 123 - 130Publisher: Cambridge University PressPrint publication year: 2021