Neural Abnormal Exam - Newborn head circumference

From Embryology
Newborn ab 28.jpg
This is a 3 weeks old infant.
  • The head circumference for the baby is 34.6 cm, which is the 25th percentile.
  • Measuring the head circumference in this baby is very important because of his findings of central or cerebral hypotonia, which reflects that the hypotonia is from an upper motor neuron problem.
  • If the baby had microcephaly, then that would indicate a process that had affected brain growth in utero.
  • The main diagnostic considerations for this baby are a congenital brain malformation, a chromosomal abnormality or an inborn error of metabolism.



Newborn Abnormal Links: behaviour | cranial nerves | Newborn Tone - resting posture | upper extremity‎ | arm traction | arm recoil | scarf sign | hand position | lower extremity | leg traction‎ | leg recoil‎‎ | popliteal angle‎ | heel to ear | neck tone | head lag‎ | head control | Newborn Positions - prone | ventral suspension | vertical suspension | Newborn Reflexes - deep tendon reflexes | plantar reflex‎ | suck, root | Moro | Galant | stepping‎ | grasp | Newborn Head - head shape and sutures‎ | head circumference‎


Movie Source - Paul D. Larsen  
Movies from the PediNeuroLogic Exam website are used by permission of Paul D. Larsen, M.D., University of Nebraska Medical Center and Suzanne S. Stensaas, Ph.D., University of Utah School of Medicine. Additional materials were drawn from resources provided by Alejandro Stern, Stern Foundation, Buenos Aires, Argentina; Kathleen Digre, M.D., University of Utah; and Daniel Jacobson, M.D., Marshfield Clinic, Wisconsin. The movies are licensed under a Creative Commons Attribution-NonCommerical-ShareAlike 2.5 License.
Links: Neural Exam Movies | Movies



Cite this page: Hill, M.A. (2019, April 23) Embryology Neural Abnormal Exam - Newborn head circumference. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Neural_Abnormal_Exam_-_Newborn_head_circumference

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© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G