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Granulomatous inflammation
Granulomatous inflammation
* ''Mucor'', a fungi, invades the [[The Rumen - Anatomy & Physiology|rumen]] wall, e.g. after damage caused by [[Rumenal Acidosis|rumenal acidosis]].
* ''Mucor'', a fungi, invades the [[Rumen - Anatomy & Physiology|rumen]] wall, e.g. after damage caused by rumenal acidosis.
* Produces chronic ongoing granulomatous rumenitis.
* Produces chronic ongoing granulomatous rumenitis.
* Difficult to diagnose in life.
* Difficult to diagnose in life.
=====Gross=====
=====Gross=====
* Thickening and ulceration of mucosal surface of [[The Rumen - Anatomy & Physiology|rumen]].
* Thickening and ulceration of mucosal surface of [[Rumen - Anatomy & Physiology|rumen]].
** Feels like thick leather.
** Feels like thick leather.
*[[The Rumen - Anatomy & Physiology|Rumen]] wall becomes fibrosed.
*[[Rumen - Anatomy & Physiology|Rumen]] wall becomes fibrosed.
=====Histological=====
=====Histological=====
* Can visualise fungal hyphae in tissue using special stains (PAS),
* Can visualise fungal hyphae in tissue using special stains (PAS),
** Often grow along blood vessels.
** Often grow along blood vessels.
*** May cause thrombosis of small blood vessels, leading to further necrosis (infarction) of [[The Rumen - Anatomy & Physiology|rumen]] wall.
*** May cause thrombosis of small blood vessels, leading to further necrosis (infarction) of [[Rumen - Anatomy & Physiology|rumen]] wall.
[[Category:Forestomach_-_Inflammatory_Pathology]][[Category:Cattle]]
[[Category:Forestomach_-_Inflammatory_Pathology]][[Category:Gastric Diseases - Cattle]]
[[Category:To_Do_-_Clinical]]
[[Category:To_Do_-_Alimentary]][[Category:To Do - Medium]]
[[Category:Arterial_Pathology]]
[[Category:Cardiology Section]]