Lymphosarcoma

Question 1

what are the 2 forms of lymphosarcoma in cows

Answer 1

non viral/sporadic –>young animals, VERY rare, not ass. with BLV

adult/viral–>ass. with BLV

Question 2

CS of sporadic calf form of LS (lymphosarcoma) and ddx

Answer 2

big lymph nodes

ddx: infections

Question 3

CS of the thymic form of sporadic LS and ddx?

Answer 3

mass at thoracic inlet

ddx: abscess if hot, edema from CV disease, hematoma from trauma,

Question 4

CS of cutaneous sporadic LS

Answer 4

raised ulcerated lesions with necrotic centers, progressive, usually T cell lymphoma

Question 5

BLV infects what cell type

Answer 5

B cells

Question 6

characteristics of BLV ass. LS?

Answer 6

slow spread, cows usually more than 4yo, more common in dairy, gradual loss of condition, decrease in milk