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Phase II > Parasites > Flashcards

Parasites Flashcards

(47 cards)

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1
Q

Spirocerca lupi, histologic features of parasite

A

Spiruid nematode – prominent lateral cords, intestine lined by uninucleate cells with brush border, eosinophilic material in pseudocoelom

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2
Q

Spirocerca lupi, histologic lesions

A

Necrotizing arteritis (aorta adventitia), granulomatous esophagitis/esophageal fibrosis; Intestinal infarcts d/t aberrant migration of larvae (vetpath 2020)

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3
Q

Spirocerca lupi, sequelae

A

Can undergo malignant transformation to sarcoma +/- hypertrophic osteopathy, Esophageal Fibrosarcoma/osteosarcoma, hypertrophic osteopathy, spondylosis derformans of thoracic vertebrae d/t larval migrans

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4
Q

Spirocerca lupi, host, location of lesion in host, intermediate host

A

Esophageal/gastric cardia/aortic wall canids/wild felids, Intermediate host: dung beetle, insectivorous paratenic host

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5
Q

Sarcocystis gigantea

A

Sheep, white nodules on esophageal serosa, Can be associated with eosinophilic myositis, Spread by cats

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6
Q

Thalazia

A
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7
Q

Halicephalobus gingivalis

A
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8
Q

Dirofilaria immitis

A

Filarid nematode, Differentiate from non-pathogenic dipetalonema reconditum, Dogs>cats,

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9
Q

Prosthenoichis elegans

A

Acanthocephalon, No digestive tract, hypodermis&raquo_space;muscle, lacunar channels, spiny proboscis and lemnisci, Double shelled egg

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10
Q

Prosthenoichis elegans

A

Ulcerative and pyogranulomatous typhlocolitis in primates, intermediate host – cockroach and beetles, Secondary infections often lead to debilitation and death

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11
Q

Prosthenoichis spirula

A

less common and in ileum

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12
Q

Macracanthorhynchus hirudinaceus

A
  • Thorny headed worm of swine
  • Wild and domestic swine, dung beetle intermediate host
  • Small intestines
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13
Q

Oesophagostomum

A

Nematode
Small adults embedded within nodule in cecum, colon, mesentery
Wild caught monkeys

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14
Q

Oxyuris equi

A

horse pinworm

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15
Q

SKrjabinema ovis

A

goat/sheep pinworm

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16
Q

Ostertagia ostertagi (cattle)

A

trichostrongyle, Morrocan leather= mucus neck cell hyperplasia/metaplasia
* Type I – lambs and calves = direct development of ingested larvae to adult in short time = chronic gastritis
* Type II – hypobiosis => synchronous maturation-> acute abomasitis

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17
Q

Type I Ostertagia

A

lambs and calves = direct development of ingested larvae to adult in short time = chronic gastritis

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18
Q

Type II Ostertagia

A

hypobiosis => synchronous maturation-> acute abomasitis

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19
Q

Teladorsagia circumcincta (sheep and goats)

Study These Flashcards
A
  • trichostrongyle
  • Morrocan leather= mucus neck cell hyperplasia/metaplasia
  • Type I – lambs and calves = direct development of ingested larvae to adult in short time = chronic gastritis
  • Type II – hypobiosis => synchronous maturation-> acute abomasitis
20
Q

Haemonchus contortus

21
Q

Trichostrongylus axei

Study These Flashcards
A
  • Horses
    *. Similar to ostertagia
  • Trichostrongyle
  • intraepithelial tunnels
22
Q

Ollulanus tricuspis

Study These Flashcards
A

Gastric trichostrongyle in cats

23
Q

Nochti nochti

Study These Flashcards
A

Gastric Trichostrongyle of NHPs (rhesus, cynomolgus, stumptail macaques)
Mucous neck cell hyperplasia, metaplasia of fundic/pyloric glands

24
Q

Hyostrongylus rubidus

Study These Flashcards
A

Trichostrongyle pigs
Thin sow syndrome

25
Gongylonema
* Spiruid nematode * Tracts within mucosa without nodules in esophageal stratified squamous epithelium +/- stomach, rumne, tongue * Ruminants, pigs, horses, primates, rodents * Red, serptentine nematode 10-15cm * Cockroach and dung beetle are intermediate hosts
26
Gasterophilus
* Horses/equids * Migrate down esophagus/stomach
27
Hypoderma lineatum
* Affects ruminants * Migrate down back
28
Sarcocystis gigantea
* Sheep * White cystic nodules on esophageal serosa-> esophageal myositis * Cats spread
29
Opisthorchis/Clonorchis sinensis
* Liver fluke * Cholangiocarcinoma cats/humans
30
Draschia megastoma/Habronema megastoma
* Spiruid worm, equids * Summer sore (skin), conjunctiva, intestines * Fly intermediate host * Brood pouches in glandular submucosa * Granulomatous conjuncticitis with mineralization * Grnaulomatous and eosinophilic dermatiits
31
Physaloptera (cats and dogs)
* Spiruid nematode in dogs and cats * In lumen or adhered to gastric mucosa=> ulcerative gastritis
32
Physaloptera tumefaciens
* Large nematodes in macaques * Attached by head to gastric mucosa, body hanging out into lumen * Gastirits nad gatric hyperplasia * Cockroach intermediate host
33
Tetrameres (T. americana << T. fissipina)
Spiruid nematode Aquatic birds, passerines, Galliformes Proventricular glands (female, bright red), free in lumen or on mucosa (males Crustaceoan, grasshopper, earthworm, cockroach intermediate host Mucosal hyperplasia of proventriculus, inflammation (mild T. americana, significant T. fissipina)
34
Microtetrameres
Proventriculus of crows and pigeons Cyrenea = nonpathogenic gallinaceous birds, quail Gongolinema ingluvicola – crop, esophagus, proventriculus of chicken, turkey, partridge, pheasant, quail Burrows in mucosa => white convoluted tracks
35
Protostrongylus refescens
36
Muellerius
37
Dicytocaulus filaria
Lungworm of sheep Infarcted areas in lung
38
Taenia taeniaeformis
Cysticercus fasciolaris Cestode * Hepatic sarcoma in rat
39
Schistomsoma haematobium
* Urinary bladder TCC in humans
40
Trichosomoides crassicauda
* Papillomas on urothelium in rats
41
Heterakis isolonche
* Neurofibromatous mesenchymal neoplasia in pheasant * Lymphoplasmacytic to Granulomatous typhlitis with fibroplastic/neoplastic proliferation * Ascarid nematode, looks a lot like H. galinarum * Sarcomatous/pseudoneoplastic proliferative spindle cells (whorls and bundles)
42
Heterobilharzia Americanum
* Linked lymphoma in a dog
43
Strongylus vulgaris
* Equids * Thrombosis/vascular damage bowel perfusion, cranial mesenteric artery, intimal nodular mineralization of aorta, Vegetative valvular endocarditis (acute), caseous/calcareous endocardial nodules (chronic)
44
Cyathostomes
Small strongyles Synchronous emergence can cause of hemorrhagic enteritis, hypoalbuminemia, weight loss Typically nonpathogenic
45
Strongylus edentatus
Migrate through portal system to liver to cecum Hemomelasm ilei, fibrin tags on hepatic capsule?
46
Strongylus equinus
Migrate through peritoneum to liver -> pancreas-> cecum/R ventral colon
47
Large strongyles
Horse – strongylus, tridontophorus, oesophagosdontus, craterostomum Elephants – decrusia, equinurbia, choniangium Macropod marsupials – macropicola, hypodontus Ostriches – codiostomum

Phase II (4 decks)

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