Difference between revisions of "Cancer"

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'''Cancer''' is a leading cause of mortality and morbidity.  It keeps pathologists busy.
[[Image:Colon cancer 2.jpg|thumb|300px|[[Gross]] image of a [[colon cancer]].]]
'''Cancer''' is a leading cause of mortality and morbidity.  It is what keeps pathologists busy.


This article deals with general concepts in cancer.  Specific forms of cancer are described in the site from which they arise, e.g. esophageal cancer is dealt with in the ''[[esophagus]]'' articleThis article discusses ''cancers of unknown primary''.
This article deals with general concepts in cancer.  Specific forms of cancer are dealt with in their own articles (e.g. [[colorectal adenocarcinoma]]) and/or the [[site|anatomical site]] articles.   
 
In addition to be an introduction to cancer, this article also deals with ''cancers of unknown primary''.


==Definition of cancer==
==Definition of cancer==
Robbins definition of cancer:<ref name=Ref_PCPBoD8_145>{{Ref PCPBoD8|145}}</ref>
The ''Robbins'' definition of cancer:<ref name=Ref_PCPBoD8_145>{{Ref PCPBoD8|145}}</ref>
*Tumour with the capacity to:
*Tumour with the capacity to:
*#Invade (infiltrate) and destroy adjacent tissue.  
*#Invade (infiltrate) and destroy adjacent tissue.  
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===Tumours===
===Tumours===
Tumours ''per Robbins''<ref name=Ref_PCPBoD8_145>{{Ref PCPBoD8|145}}</ref> consist of:  
Tumours per ''Robbins''<ref name=Ref_PCPBoD8_145>{{Ref PCPBoD8|145}}</ref> consist of:  
#Clonal expansions.
#Clonal expansions.
#Stromal components - controlled by the clonal component.
#Stromal components - controlled by the clonal component.
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#Family history of cancer?
#Family history of cancer?
#Symptoms/presentation.
#Symptoms/presentation.
#Occupation & documented exposures.
#Occupation & documented exposures - esp. [[smoking]], excessive [[alcohol]] use.
#Impression from clinician(s).
#Impression from clinician(s).
===Radiology/gross pathology===
===Radiology/gross pathology===
#Where is the largest lesion?
#Where is the largest lesion?
#Location of other the lesions?
#Location of the other lesions?
#Is the pattern of spread compatible with the suspected primary site?
#Is the pattern of spread compatible with the suspected primary site?
#Is the tumour at a location of a common (primary) cancer in the individual's demographic group?


===Pathologic features===
===Pathologic features===
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#[[Immunohistochemistry]].
#[[Immunohistochemistry]].
#[[Molecular pathology]].
#[[Molecular pathology]].
#[[Electron microscopy]].


==Incidence and deaths in Canada==
==Incidence and deaths in Canada==
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*[[Cancer staging systems]].
*[[Cancer staging systems]].
*[[Angiogenesis]].
*[[Angiogenesis]].
*[[Metastasis]].
*[[Collision tumour]].
*[[Viruses and cancer]].


==References==
==References==
48,470

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