Human Gene Set: HP_DECREASED_HEAD_CIRCUMFERENCE


Standard name HP_DECREASED_HEAD_CIRCUMFERENCE
Systematic name M46384
Brief description Decreased head circumference
Full description or abstract An abnormally reduced head circumference in a growing child. Head circumference is measured with a nonelastic tape and comprises the distance from above the eyebrows and ears and around the back of the head. The measured HC is then plotted on an appropriate growth chart. Microcephaly is defined as a head circumference (HC) that is great than two standard deviations below the mean of age- and gender-matched population based samples. Severe microcephaly is defined with an HC that is three standard deviations below the mean. [PMID:26505062]
Collection C5: Ontology
      HPO: Human Phenotype Ontology
Source publication  
Exact source HP:0040195
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External links https://hpo.jax.org/app/browse/term/HP:0040195
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Source species Homo sapiens
Contributed by Human Phenotype Ontology Group (The Jackson Laboratory (JAX))
Source platform or
identifier namespace		 Human_NCBI_Gene_ID
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Version history 2025.1.Hs: Updated to HPO Release 2025-05-06.

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