Changes

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]] and forces caused by pregnancy and parturition.

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]] and forces caused by pregnancy and parturition.

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

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 and 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 diaphragm and pericardium results in [[Pericarditis|pericarditis]]. Penetration of the heart itself results in myocarditis and endocarditis. Penetration of the lungs and pleura can occur resulting in pneumonia and pleurisy.

Penetration of the lungs and pleura resulting in pneumonia and pleurisy

Liver and splenic abscesses also occasionally occur following penetration of either organ.

Liver and splenic abscesses

==Signalment==

==Signalment==