Malignant Bone Tumours

Question 1

what are sarcomas

Answer 1

malignant tumours of mesenchymal origin

- can be bone or soft tissue

Question 2

name the primary bone sarcomas

Answer 2

osteosarcoma
ewings sarcoma
chondrosarcoma

Question 3

what is an osteosarcoma

Answer 3

malignant bone tumour that produces bone

Question 4

what age group and gender typically gets an osteosarcoma

Answer 4

males, 15-30 years old

Question 5

most common site of osteosarcoma

Answer 5

knee

Question 6

treatment of osteosarcoma

Answer 6

chemotherapy

Question 7

what age group gets a Ewings sarcoma

Answer 7

teenagers 10-20 years

Question 8

presentations of Ewings sarcoma

Answer 8

fever, warm swelling over affected site, increased inflammatory markers

Question 9

most common site for Ewings sarcoma

Answer 9

femur

Question 10

treatment of Ewings sarcoma

Answer 10

surgery + radiotherapy/chemotherapy

Question 11

what is a chondrosarcoma

Answer 11

bone tumour that produces cartilage

Question 12

age group affected by chondrosarcoma

Answer 12

men >45 years

Question 13

most common site for chondrosarcoma

Answer 13

pelvis

Question 14

treatment of chondrosarcoma

Answer 14

surgical resection

Question 15

soap bubble appearance on Xray

Answer 15

Giant cell tumour

Question 16

lytic lesion with a lamellated or onion type periosteal reaction on XRAY

Answer 16

Ewings sarcoma