Avian and Ruminant Oncology

Question 1

Which virus causes lymphoma in birds?

Answer 1

Retrovirus

Question 2

What virus causes reticuloendotheliosis?

Answer 2

Retrovirus

Question 3

What are clinical signs of reticuloendotheliosis in birds?

Answer 3

Runting syndrome, chronic B- and T-cell lymphomas

Question 4

What other diseases does reticuloendotheliosis resemble?

Answer 4

Marek’s and lymphoid leukosis

Question 5

How do you diagnose reticuloendotheliosis?

Answer 5

Virus isolation

Question 6

What virus causes avian leukosis (lymphoid leukosis)?

Answer 6

Retrovirus

Question 7

A bird with unilateral paresis/paralysis may be affected by what tumor?

Answer 7

Renal carcinoma

Question 8

Causes clonal malignancy of bursal lymphoid system

Answer 8

Avian leukosis

Question 9

How is avian leukosis (retrovirus) transmitted?

Answer 9

Vertically (congenitally infected chickens)

Question 10

How do avian leukosis tumors appear on histopath?

Answer 10

Large lymphoid cells that are histologically uniform

Question 11

What is an expansive/destructive tumor of sheep and goats that is not metastatic?

Answer 11

Nasal adenocarcinoma

Question 12

What are clinical signs of nasal adenocarcinoma in sheep and goats?

Answer 12

Exercise intolerance, noisy breathing

Question 13

What causes nasal adenocarcinoma in sheep and goats?

Answer 13

Ovine/caprine nasal adenocarcinoma virus