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Pathology II > Lecture 9: GI I- oral cavity > Flashcards

Lecture 9: GI I- oral cavity Flashcards

1
Q

What is the primary function or oral cavity

A

take in food—> chew—> moisten—> swallow

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2
Q

what type of epithelium makes up gingiva and oral mucosa

A

stratified squamous epithelium

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3
Q

Identify 1-2

A
  1. Oral mucosa
  2. Gingiva
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4
Q

the tongue is coated in __, supported by a core of __

A

oral mucosa, skeletal muscle

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5
Q

what arrow pointing to

A

dental pad

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6
Q

what on tongue/ oral mucosa

A

papillae

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7
Q

what is involved in defense in oral cavity

A
  1. Mucosa coating
  2. Antibacterial compounds- hydrogen peroxide, secretory IgA
  3. Digestive enzymes
  4. Normal flora
  5. Epithelial barrier
  6. Lymphoid tissue- tonsils
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8
Q

What wrong and what predisposed to

A

cleft palate- predisposed to aspiration pneumonia

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9
Q

what wrong

A

Brachygnathia superior- maxilla shorter than mandible

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10
Q

what wrong

A

Brachygnathia inferior-mandible shorter than maxilla

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11
Q

inflammation of oral cavity

A

stomatitis

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12
Q

Inflammation of tongue

A

glossitis

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13
Q

inflammation of gums

A

gingivitis

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14
Q

inflammation of caudal oral cavity

A

faucitis

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15
Q

inflammation of lips

A

chelitis

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16
Q

inflammation of salivary glands

A

sialoadentitis

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17
Q

what are 2 potential consequences of stomatitis

A
  1. Hypersalivation
  2. Osteomyelitis
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18
Q

identify lesions 1-3

A
  1. Papule
  2. Vesicle
  3. Erosion/ulceration
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19
Q

what are some clinical signs of stomatitis and gingivitis

A

hypersalivation and anorexia

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20
Q

what viruses cause papular stomatitis

A

pox viruses

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21
Q

what viruses cause vesicular stomatitis

A
  1. FMD
  2. Vesicular stomatitis
  3. Vesicular exanthema of swine
  4. Swine vesicular disease
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22
Q

cow- what wrong and what cause

A

Bovine papular stomatitis
Cause: bovine parapox virus

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23
Q

vesicular lesions must be distinguished from ___first

A

FMD

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24
Q

what is the cause of FMD

A

picornavirus

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25
Q

What is cause of vesicular stomatitis

A

rhabdovirus

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26
Q

what causes vesicular exanthema of swine

A

calicivirus

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27
Q

what causes swine vesicualr disease

A

enterovirus

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28
Q

what are some gross lesions of all vesicular stomatitides

A

vesicles/blisters, ulcers of oral cavities

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29
Q

what are the microscopic lesions of all vesicular stomatitides

A

vesicles within epithelium—> erosion/necrosis

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30
Q

how do you dx vesicular stomatitides

A

PCR

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31
Q

what should you do first when you suspect vesicular stomatitides

A

contact state vet

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32
Q

Who does FMD affect

A

calves and pigs

33
Q

is FMD in U.S.

A

no

34
Q

how is FMD transmitted

A

direct contact, aerosol

35
Q

what is the only vesicular stomatitides horses get

A

vesicular stomatitis virus

36
Q

what wrong and what cause

A

FMD
Cause: picornavirus

37
Q

What wrong and what are two potential dx

A

ulcerative stomatitis
Dx: FHV-1 or calicivirus

38
Q

what are some causes for erosive and ulcerative stomatitis in ruminants (not vesicular)

A
  1. BVDV
  2. MCF
  3. Bluetongue
  4. IBR or BHV-1
39
Q

what is the cause of BVDV

A

pestivirus

40
Q

what are the two strains of BVDV

A

non-cytopathic and cytopathic

41
Q

what are the two forms of GI disease caused by BVDV and associated morbidity and mortality

A
  1. Viral disease- low morality, high morbidity
  2. Mucosal disease- high mortality, low morbidity
42
Q

describe the non cytopathic and cytopathic strains of BVDV

A
  1. Non-cytopathic: exposed 30-110 days gestation—>persistent infection—> calf exposed after birth to cytopathic strain—> mucosal disease
  2. Cytopathic strain—> exposed before 30-110 days—> early embryonic death, abortion, cerebellar hypoplasia
43
Q

what are some gross lesions associated with mucosal disease BVDV

A

erosions/uclers on muzzle, oral cavity, esophagus, small intestines over Peyers patches

44
Q

based on these lesions what you concerned about

A

Mucosal disease from BVDV

45
Q

what is the cause of malignant catarrhal fever

A

herpesvirus, most common ovine herpesvirus 2

46
Q

what does MCF cause

A

fever, diarrhea, hemorrhagic gastroenteritis

47
Q

cattle with MCF most common become infected after exposure to __

A

sheep carriers

48
Q

what is a unique gross lesion of MCF

A

corneal opacity/ corneal edema

49
Q

what is the main microscopic lesion for MCF

A

vasculitis

50
Q

how do you dx MCF

A

PCR

51
Q

cow presents with oral ulcers, diarrhea, corneal edema. Owner informs you they also live with sheep. Perform histopath. What you concerned about

A

MCF- vasculitis in histo

52
Q

what wrong and what organ you concerned about

A

Ulcerative uremic glossitis
Concern for kidneys

53
Q

what causes pseudomembranous glossitis in horses (thrush)

A

candida spp

54
Q

arabian foal presents to necropsy floor, euthanized due to constant repeated infections and very ill. This is tongue from horse what is wrong

A

Pseudomembranous glossitis caused by candida spp

55
Q

what species/breed is classic presentation for pseudomembranous glossitis

A

Arabian foal with SCID- lack functional B and T lymphocytes

56
Q

what is the cause of lumpy jaw in cattle

A

actinomyces Bovis

57
Q

what is cause of wooden tongue in cattle

A

actinobacillus lignieresii

58
Q

what is pathogenssis of the following lesion and dx from cow

A
  1. Bacteria enters soft tissue following trauma
  2. Extends to bone
  3. Pyogranulomatous osteomyelitis

Dx: lumpy jaw caused by actinomyces bovis

59
Q

Cow tongue- what is pathogenesis of this lesion and dx

A
  1. Bacteria enter soft tissue from trauma
  2. Pyogranulomatous glossitis

Dx: wooden tongue caused by actinobacillus ligneresi

60
Q

what dogs are predisposed to eosinophilic granuloma complex

A

Siberian huskies and KCCS

61
Q

what is required to dx eosinophilic granuloma

A

biopsy

62
Q

KCCS presents with these firm, ulcerated oral lesions- perform biopsy and see this- what is dx

A

eosinophilic granuloma complex’s

63
Q

from cat- what dx

A

Chronic lymphoplasmacytic stomatitis

64
Q

what are some causes of lymphoplasmacytic stomatitis

A
  1. Calicivirus
  2. FeLV
  3. FIV
65
Q

What this and what breeds is most common in

A

gingival hyperplasia- most common in brachycephalics, especially boxers

66
Q

What these and what cause

A

canine oral papillomas
Cause: canine papilloma virus

67
Q

what is the most common malignant oral neoplasia of dogs

A

melanoma

68
Q

what is most common malignant oral neoplasia of cats

A

SCC

69
Q

what dx and prognosis

A

malignant melanoma- poor prognosis

70
Q

from cat- what is dx

A

SCC

71
Q

What dx and which breed is predisposed

A

Fibrosarcoma
Golden retrievers predisposed

72
Q

what this

A

hyperdontia

73
Q

What is pathogenesis of these lesions

A

Enamel hypoplasia

Ameloblast destruction—>decreased enamel production

74
Q

what causes enamel hypoplasia in dogs and ruminants

A

dogs: distemper virus
Ruminants: excess fluoride

75
Q

chronic dental disease can lead to what problems

A

suppurative periodontitis/ osteomyelitis—> tooth root abscess or oronasal fistulas

76
Q

what is the most common tooth for tooth root abscesses

A

upper 4th premolar (carnassial tooth)

77
Q

what this and what does it arise from

A

peripheral odontogenic fibromas- arise from periodontal ligament

78
Q

tissue from ox. What would be your morphological diagnosis for lesion below and what are 5 differentials

A

Erosions and ulcers
1. FMD
2. BVDV
3. MCF
4. vesicular stomatitis
5. infectious bovine rhinotracheitis (BHV-1)

Pathology II (15 decks)

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