06 - neoplasia or thoracic and pelvic limbs

Question 1

1. primary bone tumors are usually where in bone?

Answer 1

1. metaphysis (only in one bone, and don’t cross joint space)

Question 2

(osteosarcoma)

1. most are in the appendicular skeleton. most common site?
2. do large or small dogs get more?
3. what is a common sequelae?
4. worse or better prog in cats?

Answer 2

1. distal radius

(towards the knee and away from the elbow)

2. large
3. metastatic lung disease
4. better

Question 3

(chondrosarcoma)

1. second most common tumor in the appendicular skeleton
2. is surgical resection associated with increased survival?
3. prog?

Answer 3

2. yes (ulinke OSA)
3. poor - only 30% survive at 1 year w/ treatment

Question 4

what are the third and fourth most common tumors in the appendicular skeleton?

Answer 4

fibrosarcoma and hemangiosarcoma

Question 5

(primary soft tissue neoplasms)

(synovial cell sarcoma)

1. tumor arises form what?
2. most common joints?
3. tx recommendation?

Answer 5

1. the joint capsule
2. stifle and elbow
3. amputation (recurrence is common)

Question 6

(metastatic neoplasia)

1. carcinomas most likely to mets to bone. three kinds that often mets to bone?
2. usually seen where in bone?
3. treatment?

Answer 6

1. prostatic, TCC, and mammary carcinomas
2. diaphysis
3. usually require amputation + chemo and radiation