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Doctor insights on: Mastoid Bone

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Where exactly is the mastoid bone at in your body and what is it's purpose?

Where exactly is the mastoid bone at in your body and what is it's purpose?

See below: The mastoid process is behind your ear near the lower, back part of your skull. Its purpose is for attachment of facial muscles, primarily those for chewing (mastication), as well as the sternocleidomastoid muscles in your neck. ...Read more

Bone (Definition)

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


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Mastoid bone on the right side is larger than my left. Is this normal or should i be worried?

Mastoid bone on the right side is larger than my left. Is this normal or should i be worried?

Most likely normal: Mastoid bone is not like other bones, that have regular fixed structure. This 'bone' mostly consists of air sacs, which get air sucked into these from ear, nose and throat region. As you can imagine, the amount of air and fluid, entering these air sacs may vary, based on your medical condition. It is therefore, not surprising that one side of Mastoid may be different than the other. ...Read more

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I was wondering does the mastoid bone grow back after mastoidectomy?

I was wondering does the mastoid bone grow back after mastoidectomy?

Mastoid regrowth: by definition, mastoidectomy is the REMOVAL of much or all of the mastoid bone and the mastoid air cells. The mastoid bone is the insertion of the sternocleidomastoid muscle, seen when turning the head from side to side as the linear muscle mass that defines the lines of the front of the neck. After removal of the mastoid bone, it will not "grow" back in its original form. It will remain absent. ...Read more

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Can shingles affect the mastoid bone?

Can shingles affect the mastoid bone?

No: Shingles specifically affects nerves and would not cause any issue with our mastoid bone with the exception of pain in the overlying area. If the pain feels like it is deeper than overlying skin area, if you are having any systemic signs like fever or chills, you may want to consider mastoiditis as a diagnosis instead and should seek medical attention for antibiotics. Hope this helps! ...Read more

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How can i tell if my son has a fractured mastoid bone?

How can i tell if my son has a fractured mastoid bone?

If you son sustained: blunt trauma to the temporal bone or piercing trauma to the ear, take him to a hospital-based Emergency Room immediately where physicians can examine him, obtain needed radiographic studies & call in any surgeons needed, like an ENT specialist &/or neurosurgeon, depending on the findings. Do not delay. The doctors will tell you what needs to be done after they assess & stabilize him. ...Read more

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What causes a lymph-node on your mastoid bone to stay enlarged for years?

Unlikely: Lymphatic system absorbs/carries things too big to go into arteries/veins like bacteria eaten by white cells and digested food. Lymph nodes "taste" lymph for bacteria/viruses/cancers, etc. When it detects a problem, it alerts the immune system and your body reacts.They enlarge in response to the inflammation they create when they react. They shrink when all is well. Persistence mandates evaluation. ...Read more

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Swollen "node" on mastoid bone. Small (.5 CM or less), stable, firm/rubbery feeling, fixed in place, painless. It has been there 8 months. Worrisome?

Swollen "node" on mastoid bone. Small (.5 CM or less), stable, firm/rubbery feeling, fixed in place, painless. It has been there 8 months. Worrisome?

No: A small rubbery node on the mastoid that has not grown in 8 months is no cause for concern. It is probably due to some benign issue with your scalp. It may be as simple as dandruff. ...Read more

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When they drill the infected mastoid bone out, does it grow back?

Mastoidectomy: No, when you have a mastoidectomy for chronic mastoiditis, the bone does not grow back. The purpose is to drill out and remove the chronically infected bone and to have it heal with no more infection. ...Read more

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Mastoid bone became swollen and painful to touch 2 days ago. Redness & pain went away overnight.It is still a hard bump though. What is it?

Mastoid bone became swollen and painful to touch 2 days ago. Redness & pain went away overnight.It is still a hard bump though. What is it?

See your doctor: After your doctor has taken a look she will advise if you need dental follow up, biopsy or antibiotics. She will also get a full history to find out if trauma was involved. ...Read more