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Flashcards in Test 3 Deck (55)
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1

True or false; the 3 fibrous diseases we discussed in class are usually asymptomatic

true - however fibrous dysplasia can cause pain once the dz has begun to cause deformities

2

True or false; all 3 fibrous pathologies we discussed in class begin and end in childhood (resolve on their own)

False; Fibrous dysplasia persists into adulthood

Non-ossifying fibroma is in between - if >8cm in size will need cutterage and bone chips to help resolve

3

What is the age of occurrence in simple bone cysts

3-14 years

4

What is the age of occurrence in ABC's?

10-25 years

5

What is the age of occurrence in osteosarcoma

10-25 years

6

What is the age of occurrence in ewing's sarcoma?

10-25 years

7

What is the age of onset in lymphoma

20-40 years

8

What is the age of onset in Giant cell tumors

20-40 years

9

True or false; hemangiomas effect patients >40

True

10

Age of occurrence in metastatic bone disease

>40 years

11

Multiple myeloma has what age of onset?

>50 years

12

True or false; Paget's disease starts affecting patients at a young age

False; >50 - though more commonly in the elderly so >65 (he said today in class to think of Paget's as a old person dz)

13

MC location of solitary bone cyst

Proximal humerus

14

MC location of fibrous dysplasia

Proximal femur

15

The proximal femur is the MC site for fibrous dysplasia; what defect can that cause?

Sheppard's hook

16

MC location of giant cell tumors

Knee

17

MC location of ABCs

spine - specifically neural arch

18

MC location of Chondroblastoma

Knee

19

MC location of osteochondroma

knee

20

MC location of osteosarcoma

knee

21

True or false; most GCTs will become malignant

false; only ~20%

22

If you found a tumor in the wrist; what is the most likely Dx

GCT

23

MC location of endochondroma

hand

24

MC location of hemangioma

vertebral body

25

Second MC location for ABCs

Knee

26

What should your differential diagnoses be if you see the MRI of a hemangioma?

Solitary plasmocytoma (look in your book - or google image them - they look very similar but plasmocytoma has a more "blown out" appearance)

27

True or false: Aspirin will relieve the pain from an osteoblastoma

false; will relieve pain from osteiod osteoma

28

MC location for osteoid osteoma

proximal femur - bird nidus appearance

29

What pathology is associated with the "fallen fragment sign" and how likely are you to see it on an X-ray?

Solitary bone cyst

Very likely. SBC's are typically asymptomatic until a fx occurs which causes the fallen fragment sign which is a piece of bone floating in the serous fluid

30

MC benign tumor of bone

solitary osteochondroma

31

True or false; solitary osteochondromas typically cause a host of symptoms including pain

False; typically are asymptomatic until a trauma to the area causes pain

32

What is the common treatment for GCTs

Surgical curettage with liquid nitrogen freezing

33

MC location of osteoblastoma

neural arch followed by long bones

34

If a patient had a painful scoliosis what should be your first thought?

Osteoblastoma

35

True or false; osteoblastomas are typically asymptomatic

false; 84% have a dull pain that is worse at night

36

"rain drop skull" is associated with

Multiple myeloma

37

True or false; Multiple myeloma commonly affects the skull

true "rain drop skull"

38

Age of occurrence in chondrosarcoma

usually over 50 years

39

True or false; Chondrosarcoma typically causes pain quickly after development

false; has late development of pain

40

Age of occurrence for all fibrous diseases (fibrous cortical defect, non-ossifying fibroma, fibrous dysplasia)

2-10 years

41

True or false; chondrosarcoma's and enchondroma's are easy to differeniate on plain film

false; need to tie in clinically - both have "popcorn calcification"

42

What is onchondromatosis/Ollier's disease?

Multiple enchondromas

causes deformity in hands and feet

43

True or false; ABCs are typically slow growing

false; the most rapid growing tumor we talked about - causes extreme pain

44

True or false; Multiple myeloma likes the diaphseal region

true

45

Where does ewing's sarcoma like to be in bone

diaphyseal region

46

A double density sign on bone scan is associated with

osteoid osteoma

47

Fluid fluid levels =

ABCs

48

What is a rind sign? And what is it associated with?

Thick sclerotic ring - fibrous dysplasia

49

What disease is osteoporosis circumscripta associated with

paget's disease (stage 1 - lytic)

50

Rim sign in the pelvis =

Paget's disease (stage 2 - mixed)

51

One eyed pedicle sign =

Could be congenital or lytic mets - need to tie in clinically or order MRI

52

Blade of grass sign =

Paget's disease in long bones

53

Picture frame vertebrae =

paget's disease in vertebrae

54

Ivory vertebrae =

Metastatic bone dz
Paget's
Lymphoma

55

Only 2 pathologies women are more likely to get

ABCs and Hemangiomas