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==Description==
==Description==
Due to their unselective feeding habits, cattle may injest a variety of foreign bodies. Heavier metallic objects consumed can become lodged in the [[The Reticulum - Anatomy & Physiology|reticulum]], and may penetrate the reticular wall under the influence of the continuous [[The Reticulum - Anatomy & Physiology#Ruminoreticular contraction|reticular movements]].
Due to their unselective feeding habits, cattle may injest a variety of foreign bodies. Heavier metallic objects consumed can become lodged in the [[The Reticulum - Anatomy & Physiology|reticulum]], and may penetrate the reticular wall under the influence of the continuous [[The Reticulum - Anatomy & Physiology#Ruminoreticular contraction|reticular movements]].
Pathological changes depend on the direction of penetration; this is usually in an anterior-ventral direction. Pyogenic bacteria escape from the [[The Reticulum - Anatomy & Physiology|reticulum]], causing localised peritonitis, local fibrinous adhesions
# Penetration of the diaphragm and pericardium resulting in [[Pericarditis|pericarditis]].Penetration of the heart itself resulting in myocarditis and endocarditis
Penetration of the lungs and pleura resulting in pneumonia and pleurisy
Liver and splenic abscesses
==Signalment==
==Signalment==
==Diagnosis==
==Diagnosis==
====Pathology====
====Pathology====
Pericardium is enormously thickened with oedema, and purulent fluid containing fibrin clots accumulates in the sac giving “bread and butter heart” - classical traumatic reticulitis.[[Image:traumatic pericarditis.jpg|thumb|right|150px|Traumatic pericarditis (Courtesy of BioMed Image Archive)]]
Large abscesses in the dorsal part of the [[Liver - Anatomy & Physiology|liver]] may erode into posterior vena cava to produce thrombosis.
* '''Pathological changes depend on the direction of penetration; this is usually in an anterior-ventral direction.'''
* * Very thick-walled, pus-filled abscesses form around points of penetration, which may be multiple.
* Very thick-walled, pus-filled abscesses form around points of penetration, which may be multiple.
* The foreign object may be found in one of these abscesses, or free in the reticular lumen[[Category:Forestomach - Inflammatory Pathology]][[Category:Cattle]][[Category:To_Do_-_Caz]]
* The foreign object may be found in one of these abscesses, or free in the reticular lumen[[Category:Forestomach - Inflammatory Pathology]][[Category:Cattle]][[Category:To_Do_-_Caz]]