Doctor insights on:
Fused Skull Bones In Children
None.: As a newborn, none of the skull bones are fused; there are membranes/cartilage that fill spaces between them. Gradually this converts to bone (ossification), mostly during childhood, but process may not be complete till age 25! if they fuse prematurely, will cause intracranial pressure, head pain, visual problems, and unusual head shapes causing low self-esteem. Craniosynostosis requires surgery. ...Read more
The cranium or brain part of the skull is comprised of 8 different bones, and although these joints don't move like those in the extremities, there is slight movement which allows an infant's skull slight movement to enable birth and growth occurs at the margins to allow head symmetry. The margins or sutures generally fuse by 22-39 months. At times they can be prematurely ...Read more
Craniosynostosis: The skull is made of many bone plates which are not fully fused at birth, allowing for adequate brain development. Fibrous tissue between the plates (cranial sutures) calcifies as brain growth slows during the first five or so years. Premature fusion of the plates can cause a mis-sharpen head or inhibit brain growth. Not all fused sutures are worrisome. The only treatment, if required, is surgery. ...Read more
Growth plates closed: The cranium or brain part of the skull is comprised of 8 different bones, and although these joints don't move like those in the extremities, there is slight movement which allows an infant's skull slight movement to enable birth and growth occurs at the margins to allow head symmetry. The margins or sutures generally fuse by 22-39 months. At times they can be prematurely closed and no longer. ...Read more
Hamangioma: A hemangioma is a benign collection of blood vessels, and can occur anywhere in the body. They may be harmless but occasionally can cause pain, bleeding, or pressure on surrounding structures. Your doctor can best decide the proper course for you to take regarding this particular lesion. Many can simply be observed. ...Read more
Two reasons...: During a vaginal delivery, the unfused skull bones can shift as necessary, making the head more malleable for passage through the birth canal. The unfused bones also allow room for the baby's brain to grow during early life. The bones in the skull will fuse after about 12 to 18 months. ...Read more
See below: This is a problem that requires a face-to-face meeting with your doctor. In that meeting, your doctor will listen to you, perform a throrough examination and possibly order labs or other tests. Based on this information, he/she will be able to tell you what's wrong and what to do about it. ...Read more
Can you please tell me why it'simportant that the bones of an infant's skull not grow together too rapidly?
Shape/size preserv: There roughy 17 growth centers of the human skull that push away at each other while the skull grows in size and changes contour with age. Most head growth is finished by age 9.Premature fusion of a growth center stops the skull from enlarging in the area. This limits the volume the brain can grow into and can distort the shape of the skull. Pressure can build up causing symptoms. ...Read more
Bone on the top back of neck, right under skull. It doesn't stick out, I can only feel it when I press in. What could this be?
Occipital Bone: That is called the occipital protuberance on the back side of the skull. It is normal and almost everyone has this. Unless it hurts, I wouldn't worry about it. ...Read more
I have a knot on my skull, it doesn't hurt, and its perfectly circular. I haven't hit my head, feels like bone. Is this normal?
You feel a lump under the surface of the scalp that you refer to as a lump, correct?
The nature of the growth is unknown as it does not follow from a trauma.
In my opinion this should be examined and then a prognosis can be made. A growth may be innocent and benign such as a cyst or malignant such as a bond tumor or tumor arising beneath the skull. ...Read more
I think I have a bone spur on the back of my skull, left side more towards the bottom... It hurts to the touch. Is this possible?
It's possible: Ay bone can technically have a spur or exostosis or prominence. If you have pain it should be checked out. ...Read more
Smooth oval Lump, 10x15mm, 3mm thick, appeared on the side of my skull. Lump is IMMOBILE & hard, feel like bone. Was not there 1 week ago. No Pain.
New finding: Since it seems to have just arose. See doctor for evaluation. Make sure to give a good history. Like any trauma? Seems a little odd to have new onset of a hard boney lesion??? ...Read more
I have 2 small hard bumbs on the right side lower right before before my neck part of my skull. Tbey are hard like bone and don't really hurt I just?
These are a scalp cyst they feel hard like a bone, nothing to worry about.
If you are super concern see a doctor. ...Read more
Bone at back of neck, right below the skull. It isn't on the skull, it's below it. It doesn't stick out, I feel it when I press. What could this be?
Occipital bone: Its called the occipital protuberance. Its normal and found on back of skull. ...Read more
What kinds of materials are used in place of skull during a cranioplasty? What are the synthetic materials that doctors use in place of bone during a cranioplasty? .
Depending: Depending upon the problem being addressed, type and size of defect, and final plans for reconstruction a number of materials may be used ranging from acrylics to titanium mesh. ...Read more
Protection: The skeletal system function to protect vital organs like the brain (in terms of the skull) or heart and lungs and give structure to the body. Bones are also involved in blood cell production, mineral storage and endocrine functions. ...Read more
Check w/ doctor: It is important to be certain the baby does not have any other birth defects. Some infants with skull bones that have grown together ("cranioynostosis") have a "sundrome" (a recognized group of birth defects). A syndrome can often be diagnosed on physical examination of the entire infant and, increasingly, by dna testing. Your pediatrician may refer you to a medical geneticist for this testing. ...Read more
Knitted skull bones: The infant skull is composed of growth plates designed to grow pushing away from each other. After 9y, the plates knit as the adult head size is reached. Knitting up too early will form ridges & distort the shape of the skull. When this occurs, the knitted area can be released surgically as an open procedure or through a scope. I've cared for 3 in my practice in 3 decades & they have done fine. ...Read more
Hard to say: There are some bony prominences on the back of skull that are normal. If it is painful, tender, expanding, or clearly different than the other side you should probably be seen. ...Read more
Bone is a living growing tissue made mostly of collagen (protein that provides soft framework) & the mineral calcium phosphate that adds strength & hardens the framework. Two types of bone are found in the body; cortical (dense compact outer layer) & trabecular (makes up inner layer, ...Read more