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Flashcards in Bone Tumors- Handorff Deck (65)
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1

What are the four pieces of information you need when attempting to identify a bone lesion/tumor?

Age and sex of pt, location of lesion, radiographic appearance of lesion

2

Malignant tumor of the skull or lumbar vertebrae

chordoma

3

Benign tumor of the spinal cord=

osteoblastoma

4

Malignant bone lesion of the shoulder=

osteosarcoma

5

malignant lesion of the pelvis=

chondrosarcoma

6

Malignant lesion of the head of the femur or radius=

Giant cell tumor...and most are actually benign

7

Also look at the diagram for non-malignants

ok

8

Malignant bone tumors occuring in the metaphysis are?

Osteosarcoma and juxtacortical osteosarcoma

9

Malignant tumors occuring in the diaphysis include

Ewing's Sarcoma and chondrosarcoma

10

Bnign tumors occuring at the epiphysis include...

Chondroblastoma and Giant cell Tumor

11

Benign tumors in the diaphysis include

Enchondroma and fibrous dysplasia

12

What is the issue in fibrous dysplasia?

All components of the bone are present but do not mature

13

What are the 3 distinctive patterns of bone involvement?

monostotic, polyostotic, McCune Albright SYndrome

14

What is monostotic fibrous dysplasia

characterized by single bone involvement

15

What is polyostotic fibrous dysplasi

characterized by multiple bones being involved

16

McCune Albright Syndrome

Polyostotic, Cafe-Au Lait skin pigmentation, Endocrinopathies

17

Polyostotic fibrous dysplasi may transform to?

Osteosarcoma

18

x-ray appearance of a fibrous cortical defect?

scooped out with borders that are scalloped and sclerotic/ denser than the bone which surrounds them

19

Is a fibrous cortical defect common or uncommon

COMMON. over 50% of kids over 2

20

Most common site of fibrous cortical defect

Metaphysis of femur and proximal tibia
Approximately half of these are bilateral or multiple

21

If you see that the fibrous cortical defect is over 5-6 cm, what do you suspect?

nonossifying fibroma

22

Fibrous cortical defects ususally resolve.....

spontaneously

23

Definition of fibrous cortical defect

eccentric, sharply delineated, metaphyseal lesion in long bones of adolescents...Also known as benign fibrous histiocytom is mass forming

24

Fibrous cortical defect age group

adolescents

25

Symptoms of FCD

pain

26

Solitary bone cysts are benign fluid-filled cysts

truth

27

2/3 of solitary bone cysts occur where?

in the humerus or femur

28

Solitary bone cysts are usually asymptomatic

true

29

Very bloody cystic lesion=

aneurysmal bone cyst

30

Aneurysmal bone cysts are not true tumors, they arise from the surface of bone and are usually found in the long bones and vertebral column.

all true