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Guinea Pigs (Laboratory) - Pathology (view source)
Revision as of 20:49, 6 November 2010
, 20:49, 6 November 2010→Cervical Lymphadenitis
===Cervical Lymphadenitis===
===Cervical Lymphadenitis===
Steptococcus zooepidemicus is normally present in the conjunctiva as a commensal organism. If this organism gains access to the cervical lymph nodes they can become pathogenic and in some cases death can occur due to septicaemia. Infection will cause the lymph nodes to swell. Stress has been shown to increase susceptibility. <br />
Steptococcus zooepidemicus is normally present in the conjunctiva as a commensal organism. If this organism gains access to the cervical lymph nodes they can become pathogenic and in some cases death can occur due to septicaemia. Infection will cause the lymph nodes to swell. Stress has been shown to increase susceptibility. <br />
Necropsy will show macroscopic pathology ranging from enlarged lymph nodes to encapsulated abscesses filled with a thick yellow/white purulent exudate. Associated pathology found in other organ systems involved may include bronchopneumonia, otitis media, pleuritis, peritonitis, and pericarditis.
===Wry Neck===
===Wry Neck===
This condition affects only newborn guinea pigs in which they have a degree of torticollis and may be found lying on their backs to suckle due to their inability to maintain a suitable head posture. This condition is hereditary.<br />
This condition affects only newborn guinea pigs in which they have a degree of torticollis and may be found lying on their backs to suckle due to their inability to maintain a suitable head posture. This condition is hereditary.<br />