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RUSVM Pathology I > Post Mortem Changes and Non-Lesions > Flashcards

Post Mortem Changes and Non-Lesions Flashcards

1
Q

Name this morphological change

A

Chicken Fat Clot

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2
Q

What are some common post mortem eye changes?

A

Corneal opacity

“Cold Cataracts”

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3
Q

Name this morphological change

A

Hemoglobin Imbibition

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4
Q

_________ occurs after somatic death due to total diffuse hypoxia

A

Autolysis occurs after somatic death due to total diffuse hypoxia

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5
Q

How do you tell if ingesta in the trachea is significant or not?

A

Inflammatory response would occur if ingesta was there antemortem

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6
Q
A
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7
Q

Autolysis

A

Self-digestion or degradation of cells and tissues by the hydrolytic enzymes normally in tissues

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8
Q

Rigor mortis occurs due to

A

Rigor mortis occurs due to depletion of ATP and inability of myosin to detach from actin binding site

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9
Q

____________ gives color, texture changes, gas production and odors

A

Putrefaction gives color, texture changes, gas production and odors

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10
Q

Post mortem _________ occurs several hours post death in the heart and vessels.

A

Post mortem blood clotting occurs several hours post death in the heart and vessels.

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11
Q

What is this? What is it caused by?

A

Bloat Line

Ruminal tympany

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12
Q

Chicken Fat Clot

A

Due to separation of RBCs and clotted serum

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13
Q

Tissues with greater concentration of ________ will autolyze the quickest.

A

Tissues with greater concentration of proteolytic enzymes will autolyze the quickest.

____________________

GI tract, Pancreas, Gall Bladder

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14
Q

What is the cause? Is it significant to PM exam?

A

Due to degradation of capillaries in the nose.

Normal PM

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15
Q

Rigor Mortis

A

Contraction of muscles after death

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16
Q

Changes associated with bloat

A

Rectal/vagninal prolapse

Froth in trachea

Ruptured viscera

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17
Q

T/F: We typically give MDx’s to non-lesions and PM change.

A

False

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18
Q

______________ can delay or cause failure of blood to clot.

A

Coagulopathies can delay or cause failure of blood to clot.

19
Q

Bile Imbibition

A

Bile in the gallbladder starts to penetrate the wall and stain the adjacent tissues - liver, intestines and diaphragm

20
Q

Cause

A

Accelerated renal autolysis associated with Clostridium perfringens type D septicemia

21
Q

What is the cause? Is it significant to PM exam?

A

Wet looking, discolored lungs

Caused by - Barbiturate Euthanasia

Normal

22
Q

What is the cause? Is it significant to the PM exam?

A

Osseous Metaplasia

Caused by - old age

Normal

23
Q

How do you differentiate bloat from ruminal tympany?

A

Clinical history and bloat line

24
Q

Pseudomelanosis is commonly see in tissues in contact with the

A

Pseudomelanosis is commonly see in tissues in contact with the gut

_____________________

Kidney, Spleen, Liver, Gut wall itself

25
Q

Hemoglobin Imbibition

A

Red staining of tissue, especially the intima of heart, arteries and veins

26
Q

Name this morphological change

A

Livor Mortis (Hypostatic Congestion)

27
Q

(Antemortem Clot/ Postmortem Clot) - Attached to vessel walls, dry and dull, lamellated and friable.

A

(Antemortem Clot/ Postmortem Clot) - Attached to vessel walls, dry and dull, lamellated and friable.

28
Q

Putrefaction

A

Process by which post mortem bacteria break down tissues

29
Q

Disease

A

Pulpy Kidney Disease in Sheep

30
Q

Rate of decomposition depends on

A

Cause of death

Environmental and body temperature

Microbial flora

31
Q

MDx

A

Ulcerative Rumenitis

32
Q

Livor Mortis (Hypostatic Congestion)

A

Gravity pulls blood post death causing a variation in color of tissues (skin, lung, kidneys).

_______________________

Some areas the tissues will be more read and in others more pale

33
Q

(Antemortem Clot/ Postmortem Clot) - Unattached, shiny and wet, elastic and creates a perfect cast of vessel lumen.

A

(Antemortem Clot/ Postmortem Clot) - Unattached, shiny and wet, elastic and creates a perfect cast of vessel lumen.

34
Q

Pseudomelanosis is caused by

A

Decomposition of blood by bacterial action forming hydrogen sulfide with iron

35
Q

Bloat

A

Results from postmortem bacterial gas formation in the lumen of the GI tract

36
Q

Rigor mortis begins ________ post death and persits for __________.

A

Rigor mortis begins 1-6 hours post death and persits for 1-2 days.

37
Q

Do herbivores or carnivores bloat faster?

A

Herbivores, due to increased bacteria in the rumen

38
Q

What is the cause? Is it significant to the PM exam?

A

Giant, Congested Spleen

Caused by - Barbiturate Euthanasia

Normal

39
Q

Is ingesta in the trachea always considered significant?

A

No, could be caused by transport.

40
Q

Hemoglobin Immbibition is caused by

A

Hemoglobin Immbibition is caused by hemoglobin being released by lysed RBCs penetrating the vessel wall and extending to the adjacent tissues

41
Q

Name this morphological change

A

Bile Imbibition

42
Q

What can cause accelerated rigor mortis?

A

High heat and high activity before death

43
Q

Pseudomelanosis

A

Greenish-black discoloration of tissues post mortem

RUSVM Pathology I (18 decks)

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