IT IS NOT A TUMOR

Question 1

Most common site for bone tumors

Answer 1

Metaphysis

Question 2

Osteochondroma

Answer 2

Most common bone tumor
Males 2:1
Usually solitary, palpable, painful

Question 3

Osteoid osteoma

Answer 3

Common primary bone tumor
Characteristic night pain resolved by NSAIDS
Central clearing, cortical thickening
LE and spine

Question 4

Osteoblastoma

Answer 4

Rare, large bone growth
Pain not relieved by NSAIDS
Lytic apearance

Question 5

Synovial chondromatosis

Answer 5

Cartilaginous metaplasia of the synovium
Multiple loose bodies
Middle age
Arthroscopic removal
X-ray will be on test winkwink

Question 6

Heterotopic ossification

Answer 6

Bone that forms outside skeleton
Especially around joint after trauma/surgery
Frequently after hip and elbow replacement
Start as warm, firm, tender swelling

Question 7

Heterotopic ossification diagnostics

Answer 7

Bone scan will show changes sooner

Question 8

Myositis ossificans

Answer 8

Common, benign bone growth in inflamed muscle.
Pain, swelling mass when growing
Painless when mature

Question 9

Unicameral bone cyst

Answer 9

Fluid filled cyst of boys 5-15 in proximal humerus and femur.
Well demarcated lesion w/ cortical thinning
Often results in fx leading to dx

Question 10

Giant cell tumor of bone

Answer 10

Females 20 - 40
Expansive lytic lesions
Associated soft tissue mass
Distal radius, prox humerus, knee, sacrum
Can met to lungs

Question 11

Aneurysmal bone cyst

Answer 11

Expansile lytic lesion about the knee of individuals <20.

Fluid/fluid levels on MRI

Question 12

Stippled calcification =

Answer 12

Enchondroma
or
Chondroblastoma

Question 13

Hemangioma

Answer 13

Incidental finding in spine on MRI

Question 14

Lipoma

Answer 14

Most common soft tossie tumor
Usually asymptomatic
Soft and freely moveable

Question 15

Most common site for skeletal mets

Answer 15

Spine

Question 16

Osteosarcoma

Answer 16

Males in their 20’s
Skip lesions on MRI
Expansive, destructive lesions
High risk of mets

Question 17

Where to osteosarcomas occur?

Answer 17

End of long bones

Question 18

Osteosarcoma key to tx

Answer 18

Chemo

Question 19

Ewings sarcoma

Answer 19

2nd most common bone tumor in 5-30 yo
Anaplastic blue bone
Painful lesions
Lung mets

Question 20

Onion skin pattern =

Answer 20

Ewings sarcoma

Question 21

Multiple Myeloma

Answer 21

Old AA ppl
Most common primary bone malignancy
2nd most common blood cancer

Question 22

CRAB

Answer 22

Calcium (elevated)
Renal failure
Anemia
Bone lesions
*Multiple Myeloma*

Question 23

MM is a dz of the

Answer 23

plasma cells

Question 24

Bone is the __ most common site of mets

Answer 24

3rd

Question 25

most common cancers to met to bone

Answer 25

Breast, prostate

Question 26

Breast mets

Answer 26

Osteolytic

Question 27

Prostate mets

Answer 27

Osteoblastic