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Yale Residency - "Other" Species and Clin Path/Mol Bio > Fish diseases > Flashcards

Fish diseases Flashcards

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Biology 101 flashcards
1
Q

Etiological agent of velvet disease

A

Piscinoodium pillulare

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2
Q

Lifecycle of piscinoodium pillulare

A

Dinospores infect fish, then turn into trophonts. Trophonts leave fish and become tomonts

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3
Q

Etiological agent of Ich

A

Ichthyophthirius multifiliis

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4
Q

C/S of ich

A

Excess mucus, labored breathing, leth. White raised nodules on skin

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5
Q

Ich histological hallmark

A

Horseshoe-shaped macronucleus

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6
Q

What’s the only significant virus in fish?

A

Lymphocystis (Iridovirus)

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7
Q

Pathognomonic lesion for Lymphocystis

A

Hypertrophic fibroblasts

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8
Q

C/S of lymphocystis

A

Raised, white, waxy lesions

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9
Q

Etiological agent of neural microsporidiosis

A

Pseudoloma neurophilia

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10
Q

c/s of pseudoloma

A

emaciation, spinal curvature

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11
Q

Tx for microsporidiosis

A

Fumagillin

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12
Q

Etiological agent of capillariasis

A

Pseudocapillaria tomentosa

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13
Q

c/s of capillariasis

A

dark, emaciated, lethargic. Cellulitis of affected region

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14
Q

ID of P. tomentosa

A

Oval, bioperculate eggs

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15
Q

tx of P. tomentosa

A

Ivermectin? Levamisole, fenbendazole

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16
Q

Etiological agent of hole in the head disease

A

Edwardsiella ictaluri

17
Q

C/S of gliding bacteria (Flavibacterium, Flexibacter) spp

A

Fin and tail rot, surface infections, bacterial gill disease

18
Q

Etiologicla agent of Costiasis

A

Ichthyobodo necatrix

19
Q

Four protozoal agents that affect fish

A 
Piscinoodium pillulare
Ichthyophthirius multifilis
Ichthyobodo necatrix
Trichodina
Pseudoloma neurophilia
20
Q

2 species of trematodes

A

Gyrodactylus

Dactylogyrus

21
Q

Cause of nephrocalcinosis

A

High CO2 or excess Ca or Mg in diet

22
Q

Most common spontaneous neoplasm

A

Seminoma

23
Q

Which organism can be a promoter of GI adenocarcinoma?

A

Pseudocapillaria tomentosa

24
Q

How to differentiate goiter from thyroid tumor?

A

Histo

25
Q

When does goiter occur?

A

When diets in environment are low in iodine or when goitrogenic chemicals are present

26
Q

Where do spindle cell sarcomas form?

A

Viscera, skeletal muscle behind the eye (causing exophthalmia)

27
Q

2 species of trematodes

A

Gyrodactylus

Dactylogyrus

28
Q

Cause of nephrocalcinosis

A

High CO2 or excess Ca or Mg in diet

29
Q

Most common spontaneous neoplasm

A

Seminoma

30
Q

Which organism can be a promoter of GI adenocarcinoma?

A

Pseudocapillaria tomentosa

31
Q

How to differentiate goiter from thyroid tumor?

A

Histo

32
Q

When does goiter occur?

A

When diets in environment are low in iodine or when goitrogenic chemicals are present

33
Q

Where do spindle cell sarcomas form?

A

Viscera, skeletal muscle behind the eye (causing exophthalmia)

Yale Residency - "Other" Species and Clin Path/Mol Bio (20 decks)

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