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PM Changes - Coggle Diagram
PM Changes
Putrefaction
Clostridia (septicum) > rel enzymes & gases > accum gas & disintegration & discoloration (=pseudomelanosis)
PM Bloat, rectal & vaginal prolapse
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PM Rupture
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Lrg, eroded areas of thin gastric/intestinal wall w/ openings > contents escapes
DD = rupture when still alive > haemorrhage along rupture line, norm peristaltic movem spreads ingest throughout ab cavity (> peritonitis) > edges curl away
PM emphysema
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Accum gas prod by putrefaction in body cavities, orgs or tissues
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PM desiccation
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Wind, low humidity, prolonged refrigeration
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Time of Death
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Algor mortis
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Ambient temp NB, wool/hair, GIT type
Livor mortis
Paired organs
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Patterns of color variation > surf liver, lungs, heart, kidneys & other orgs
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Autolysis
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Pulpy kidney
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DD > pulpy kidney disease (enterotoxaemia) in sheep > sev nephrosis & multifocal haemorrhage into cortex of kidney & rapid PM decomp >> onset & dev autolysis more rapid in kidneys
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Mucus in lumen GIT
Viscous, white > yellowish brown material loosely adherant to gastric intestinal mucosa > easily scaped off & no underlying ulceration/inflam
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PM discolouration
Pseudomelanosis
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DD = melanosis (deep into tissues), anthracosis (lungs and bronchial & mesenteric LNs)
Grey, greenish, greenish-black to black
Pseudo-icterus of horses
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DD = true icterus (mucous membranes, skin, articular cartilages & conjuctiva NOT yellow in pseudo-icterus)
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Interim
Affected by body mass, hair/wool covering, type of GIT
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Iatrogenic changes
Pseudo-cystic adrenal glands > central cavity contains blood > rapid autolysis of medulla &/or rough handling or pressing on glands during necropsy