Final

Question 1

Malignant neoplasm arising from stem cell marrow reticulum

Answer 1

Ewings

Question 2

“one eyed pedicle or “winking owl sign”

Answer 2

Metastases

Question 3

MC location for Ewing’s sarcoma in bone

Answer 3

diaphysis

Question 4

MC primary malignant tumor of the spine

Answer 4

Multiple Myeloma

Question 5

MC type of osteosarcoma

Answer 5

Conventional

Question 6

MC site for osteosarcoma

Answer 6

Knee proximal Humerus

Question 7

MC location for Osteosarcoma in long bone

Answer 7

Metaphysis

Question 8

Serum protein electrophoresis is positive and Bence-jones protenurea

Answer 8

Multiple myeloma

Question 9

MC primary malignancy of the entire skeletal system

Answer 9

multiple myeloma

Question 10

T/F osteosarcoma is common in the spine

Answer 10

False

Question 11

MC patter of presentation for osteosarcoma

Answer 11

sclerotic

Question 12

periosteal reaction classically associated with osteosarcoma

Answer 12

Sunburst/spiculated

Question 13

Secondary osteosarcoma develop from malignant degeneration of

Answer 13

pagents, HME, following radiation therapy of benign lesion

Question 14

what location is MC for chondrosarcoma

Answer 14

innominate and femur

Question 15

MC malignancy of bone

Answer 15

Metastases

Question 16

cause of 60% fo all skeletal mets in men

Answer 16

prostate CA

Question 17

metastatic bone tumors MC affect

Answer 17

Spine

Question 18

it is easiest to see disease in bone after what is involved

Answer 18

cortex

Question 19

what imaging is superior in the detection of metastatic dz in limited area of skeletal system

Answer 19

MRI

Question 20

T/F bone destruction with mets may be permeative or moth-eaten with no sclerotic border

Answer 20

True

Question 21

metastatic breast carcinoma is MC

Answer 21

lytic

Question 22

MC radioisotope used in bone scan

Answer 22

Technetium 99 methylene diphosphate

Question 23

uniformly collapsed vertebral body or pathological fracture due to mets is called

Answer 23

Vertebra plana

Question 24

MC location for osteochondritis dissecans

Answer 24

lateral aspect of the medial femoral condyle

Question 25

most sensitive means of detective avascular necrosis

Answer 25

MRI

Question 26

MC periosteal response for osteomyelitis

Answer 26

Laminated

Question 27

MC method of spreading infections

Answer 27

Hematongenous

Question 28

aneurysmal bone cyst derived from what tissue

Answer 28

vascular

Question 29

what is associated with a benign bone lesion

Answer 29

cortex is expanded but not destroyed sharp and sclerotic margin geographic

Question 30

most mailignant bone lesions are

Answer 30

secondary

Question 31

MCC for an expanded rib

Answer 31

Fibrous Dysplasia

Question 32

what are fibroxanthoma of bone

Answer 32

non ossifying fibroma | fibrous cortical defect

Question 33

codmans triangle is associated with

Answer 33

osteochondroma

Question 34

what is considered a quasi malignant tumor

Answer 34

Giant cell

Question 35

what has a similar periosteal reaction to infection

Answer 35

Ewings

Question 36

osteonecrosis of the calcaneal apophysis

Answer 36

Servers

Question 37

MC benign bone tumor of spine

Answer 37

Hemangioma

Question 38

T/F 90% of pagets dz cases are asymptomatic at dx and discovered incidentally

Answer 38

True

Question 39

aka for subchondral reactive sclerosis

Answer 39

Eburnation