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|pagetitle =Intestine - Inflammatory Pathology

|pagetitle =Intestine - Inflammatory Pathology

|pagebody = Inflammation involving small or large intestine is known as '''enteritis'''. More specific segments may be involved, (for example

|pagebody = Inflammation involving small or large intestine is known as '''enteritis'''. More specific segments may be involved, (for example

caecum - typhlitis, colon - colitis, rectum - proctitis). As with other sections of the [[Alimentary - Anatomy & Physiology|alimentary system]], there are several different types of inflammation that occur in the intestines. Even quite mild inflammatory lesions can have quite severe effects, especially if they go on for any length of time. The major pathological entities are outlined below.

caecum - typhlitis, colon - colitis, rectum - proctitis). As with other sections of the [[Alimentary System Overview - Anatomy & Physiology|alimentary system]], there are several different types of inflammation that occur in the intestines. Even quite mild inflammatory lesions can have quite severe effects, especially if they go on for any length of time. The major pathological entities are outlined below.

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===Inflammation of the Intestines===

===Inflammation of the Intestines===

* Enteritis is '''extremely common''', and is usually associated with [[Intestine Diarrhoea - Pathology|diarrhoea]].

* Enteritis is '''extremely common''', and is usually associated with [[Diarrhoea |diarrhoea]].

** Diarrhoea is the passage of faeces with increased bulk and/or fluid content.

** Diarrhoea is the passage of faeces with increased bulk and/or fluid content.

** However, remember that enteritis may occur without diarrhoea, and diarrhoea can occur without enteritis!

** However, remember that enteritis may occur without diarrhoea, and diarrhoea can occur without enteritis!

* Damage due to enteritis results in  morphological changes to the normal structure, e.g.

* Damage due to enteritis results in  morphological changes to the normal structure, e.g.

** [[Intestines - Enteritis Particularly Associated with Villus Atrophy#Villus Atrophy|Villus atrophy]].

** [[:Category:Enteritis, Villus Atrophy|Villus atrophy]].

** Apparent elongation of  the crypts.  

** Apparent elongation of  the crypts.  

** Various types of inflammatory cell infiltration.

** Various types of inflammatory cell infiltration.

* However, the bowel may remain morphologically normal in some diarrhoeaic conditions.

* However, the bowel may remain morphologically normal in some diarrhoeaic conditions.

** For example, in hypersecretory diarrhoea due to some bacterial toxins.

** For example, in hypersecretory diarrhoea due to some bacterial toxins.