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Difference between revisions of "Bone"
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Tumours often spread to bone and occasionally arise in bone. Bone tumours are dealt with in the ''[[bone tumours]]'' article. | Tumours often spread to bone and occasionally arise in bone. Bone tumours are dealt with in the ''[[bone tumours]]'' article. | ||
== | =Normal bone= | ||
==Bone== | |||
*Normal bone has osteocytes. | *Normal bone has osteocytes. | ||
**If the osteocytes are missing... the bone is dead. | **If the osteocytes are missing... the bone is dead. | ||
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Memory device: 'b' before 'c'. | Memory device: 'b' before 'c'. | ||
==Bone marrow== | ==Bone marrow== | ||
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*Immature hematopoeitic cells adjacent to the bone. | *Immature hematopoeitic cells adjacent to the bone. | ||
== | =Benign variants= | ||
===Osteomyelitis | ==Hyperostosis frontalis interna== | ||
*Extra-thick frontal bone.<ref>URL: [http://radiopaedia.org/articles/hyperostosis_frontalis_interna http://radiopaedia.org/articles/hyperostosis_frontalis_interna]. Accessed on: 29 September 2010.</ref> | |||
*No clinical significance -- just has to be recognized as a "nothing". | |||
=Infections= | |||
==Osteomyelitis== | |||
General | General | ||
*Hematogenous - often in children. | *Hematogenous - often in children. | ||
*Direct entry (skin defect) - adults with diabetes. | *Direct entry (skin defect) - adults with diabetes. | ||
===Microscopic=== | |||
* | *[[PMN]]s. | ||
==Chronic osteomyelitis== | |||
*Plasma cells. | *Plasma cells. | ||
**May be sterile, i.e. no organisms. | **May be sterile, i.e. no organisms. | ||
=Bone tumours= | |||
{{Main|Bone tumours}} | {{Main|Bone tumours}} | ||
This is a big topic. It is dealt with in a separate article. | This is a big topic. It is dealt with in a separate article. | ||
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The bone tumour article covers tumour mimics, e.g. brown cell tumour. | The bone tumour article covers tumour mimics, e.g. brown cell tumour. | ||
=Fractures= | |||
{{Main|Forensic pathology}} | {{Main|Forensic pathology}} | ||
This is dealt with in the ''forensic pathology'' article. | This is dealt with in the ''forensic pathology'' article. | ||
=Others= | |||
The following is a collection of weird stuffs. | The following is a collection of weird stuffs. | ||
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*[http://commons.wikimedia.org/wiki/File:Paget_disease_of_bone_-_intermed_mag.jpg Paget disease - bone - intermed. mag. (WC)]. | *[http://commons.wikimedia.org/wiki/File:Paget_disease_of_bone_-_intermed_mag.jpg Paget disease - bone - intermed. mag. (WC)]. | ||
=See also= | |||
*[[Hematopathology]]. | *[[Hematopathology]]. | ||
*[[Soft tissue lesions]]. | *[[Soft tissue lesions]]. | ||
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*[[Cartilage]]. | *[[Cartilage]]. | ||
=References= | |||
{{reflist|2}} | {{reflist|2}} | ||
[[Category:Weird stuff]] | [[Category:Weird stuff]] | ||