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Doctor insights on: Enlarged Head Circumference

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What is normal head circumference for a 9mnth old?

What is normal head circumference for a 9mnth old?

Depends on gender ;: Velocity of growth. Has the head circumference grown normally along a single curve between 5th-95th%ile or increased too rapidly, e.g., jumping from 25th to 95th %ile (as may be seen in autism or hydrocephalus), or too slowly, e.g., dropping from 25th to 5th%ile, (indicating insufficient brain growth)?Girls' range at 9 months is 41.6-46.6 cm; avg. Is 44 cm. Boys, 43-47.4 cm; avg. Is 45.4 cm. ...Read more

Dr. Corey Clay
12 doctors shared insights

Enlarged Head (Definition)

An enlarged head is a clinical finding in which the head is larger than in ...Read more


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Is it common to have hydrocephalus but have no other symptoms other than an enlarged head?

Is it common to have hydrocephalus but have no other symptoms other than an enlarged head?

Yes: Depending upon the exact cause of the hydrocephalus, hydrocephalus in a neonate/infant may present purely with an enlarging head circumference without any other apparent neurological issues. If left untreated, however, a child will likely develop significant neurological symptoms related to brain dysfunction - mental delay, vision loss, psychomotor difficulties, etc. ...Read more

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Had hydrocephalus but shunted so why the enlarged head?

Had hydrocephalus but shunted so why the enlarged head?

Already formed: When the head is forming and the sutures of the skull are not fused- and hydrocephalus ensues, the head will be large as they may not return to the normal location. Shunting simply keeps the internal pressure of the brain down by taking off excess spinal fluid. ...Read more

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Can unexplained enlarged head be caused by craniopharyngioma?

Indirectly: Craniopharyngiomas develop from residual cells of rathke's pouch and tend to arise from the superior margin of the pituitary gland. They may result in hydrocephalus, which may result in an enlarged head in a young child. ...Read more

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A four year old child has no hair and an enlarged head. His facial features seem normal. What could this be?

A four year old child has no hair and an enlarged head. His facial features seem normal. What could this be?

Menke's disease????: X linked disorder of defective copper transport. Diagnosis made by low serum copper levels and ceruloplasmin levels. Babies typically with no hair, neurological deficit, developmental delay, prone to infection. ...Read more

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What did the tech mean when she said my baby had enlarged head on ultrasound? Doctor said nothing about it.

What did the tech mean when she said my baby had enlarged head on ultrasound? Doctor said nothing about it.

Truth about results.: Technicians are trained to have some understanding of what they are testing and basic interpretation. There training is not extensive enough to interpret all aspects of a patient's medical condition. Hence the physician is the one who has the final say in the outcome of the tests. ...Read more

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Impatient because her head is still swollen! and is macrocephaly (enlarged head) a correct diagnoses for fluid in the brain, what to do?

Impatient because her head is still swollen! and is macrocephaly (enlarged head) a correct diagnoses for fluid in the brain, what to do?

Can't advise : This is really not something that an physician that is not involved in her care can comment on. I see you are from NYC. Some of the very best neurosurgeons practice in NY. I'd follow their advice, and get a second opinion if you aren't sure about the recommendation. ...Read more

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2011 had vp shunt placed. Had sterile peritonitis. Now have enlarged head of pancrease (pancrelipase). Elarged right side of liver 17.5 cm. Multiple lymph nodes seen?

2011 had vp shunt placed. Had sterile peritonitis. Now have enlarged head of pancrease (pancrelipase). Elarged right side of liver 17.5 cm. Multiple lymph nodes seen?

May not be due to : Vp shunt , most likely done to relive intracranial pressure , current condition needs careful evaluation , including biopsy speak to your doctor (s) will give you the plan of care. ...Read more

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My baby girl's head circumference only grew by 1cm in 2 MONTHS, From birth (34.5 cm) to 2 months (35.5). Based on the head chart, she's way behind. ?

My baby girl's head circumference only grew by 1cm in 2 MONTHS, From birth (34.5 cm) to 2 months (35.5). Based on the head chart, she's way behind.   ?

Head circumference: This does seem like slow growth. Sometimes there is moulding of the scalp which alters the head circumference and sometimes it may be difficult to get an accurate measurement. Was your baby a full term baby? Are the other measurements, her weight and her height OK? Parents heads should be measured as well. Ask for a referral to see a Pediatrician or Pediatric neurologist to help sort this out. ...Read more