17: Lymphoma 1 Flashcards
What are four examples of lymphoproliferative diseases?
Lymphoma/lymphosarcoma, lymphoid leukaemia, plasma cell/mulitple myeloma, plasmacytoma (skin tumour)
What % of malignancies in cats are lymphomas?
30%
Which virus is lymphoma associated with in cats?
FeLV
What % of malignancies in dogs are lymphomas?
8-10%
Where in the genome is FeLV inserted?
Upstream of myc
What is the bovine version of FeLV?
Enzootic bovine leukaemia
What grade are lymphomas usually?
High
What % of lymphomas are B cell?
65-80%
What is the B cell marker?
CD79a
What is the T cell marker?
CD3
Is T cell or B cell a worse prognosis?
T cell
How many subtypes of malignant lymphoma are there?
More than 20
What is the best way to diagnose lymphoma?
Histopathology of a whole node following lymphadenectomy
What kind of lymphoma is the most common in the dog?
Multicentric
In what kind of dog is multicentric lymphoma most common?
Bull-type
What type of lymphoma is least common in the cat?
Multicentric
What is a complication of multicentric lymphoma?
Progresses to other organs
What stage are most lymphomas?
3 or 4
What is substage a?
Clinically well
What is substage b?
Clinical signs
What is stage 1 lymphoma?
Single node/organ