Random

Question 1

Causes of increase in mucin in dogs?

Answer 1

Shar Pei
Myxedema in hypothyroidism
Acromegaly
CLE
Less so CETL but can be seen
Also single case of mucinosis in thyroid carcinoma

Question 2

What is the common name and disease with etiology of zombie catfish?

Answer 2

Hole in the Head disease
Enteric Septicemia of Catfish (ESC)
Edwardsiella, a gram (-) rod

Question 3

Why doesn’t Pythium stain with PAS? What is the preferred stain?

Answer 3

PAS is superior in detection of living organisms and Pythium is often devitalized in samples for histopathology.
Gomori methenamine silver (GMS) will stain the wall of living or dead fungi

Question 4

Nasal arteritis is most common in which breeds?

Answer 4

Large breed dogs (Giant Schnauzer, Saint Bernard, also Labradors)

Question 5

What are causes of cutaneous amyloidosis in dogs?

Answer 5

Primary cutaneous nodular amyloidosis is rare, secondary can be from any chronic inflammatory disease, extra medullary (cutaneous) plasmacytoma, multiple myeloma

Question 6

What stain is used for amyloid?

Answer 6

Congo red will identify amyloid, samples can be pre-treated with potassium permanganate: secondary amyloid will lose its congophilia but primary and myeloma will not

Question 7

Amyloid will turn what color with staining?

Answer 7

Red with Congo red
Yellow-green birefringence with polarized light

Question 8

What is the gene associated with Hair Cycle Arrest in Pomeranians?

Answer 8

downregulation of the Wnt/beta-catenin pathway-related genes and the MAP3K20 mutation (which is related to the non-canonical Wnt pathway)

The proteins Wnt3A AND Wnt10B in hair follicles had elevated expression after micro needling.

Question 9

What is the genus and species of the human head louse?

Answer 9

Pediculus humanus capitus