Test 3

Question 1

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

Answer 1

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

Question 2

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

Answer 2

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

Question 3

What is the age of occurrence in simple bone cysts

Answer 3

3-14 years

Question 4

What is the age of occurrence in ABC’s?

Answer 4

10-25 years

Question 5

What is the age of occurrence in osteosarcoma

Answer 5

10-25 years

Question 6

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

Answer 6

10-25 years

Question 7

What is the age of onset in lymphoma

Answer 7

20-40 years

Question 8

What is the age of onset in Giant cell tumors

Answer 8

20-40 years

Question 9

True or false; hemangiomas effect patients >40

Answer 9

True

Question 10

Age of occurrence in metastatic bone disease

Answer 10

> 40 years

Question 11

Multiple myeloma has what age of onset?

Answer 11

> 50 years

Question 12

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

Answer 12

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)

Question 13

MC location of solitary bone cyst

Answer 13

Proximal humerus

Question 14

MC location of fibrous dysplasia

Answer 14

Proximal femur

Question 15

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

Answer 15

Sheppard’s hook

Question 16

MC location of giant cell tumors

Answer 16

Knee

Question 17

MC location of ABCs

Answer 17

spine - specifically neural arch

Question 18

MC location of Chondroblastoma

Answer 18

Knee

Question 19

MC location of osteochondroma

Answer 19

knee

Question 20

MC location of osteosarcoma

Answer 20

knee

Question 21

True or false; most GCTs will become malignant

Answer 21

false; only ~20%

Question 22

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

Answer 22

GCT

Question 23

MC location of endochondroma

Answer 23

hand

Question 24

MC location of hemangioma

Answer 24

vertebral body

Question 25

Second MC location for ABCs

Answer 25

Knee

Question 26

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

Answer 26

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

Question 27

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

Answer 27

false; will relieve pain from osteiod osteoma

Question 28

MC location for osteoid osteoma

Answer 28

proximal femur - bird nidus appearance

Question 29

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

Answer 29

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

Question 30

MC benign tumor of bone

Answer 30

solitary osteochondroma

Question 31

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

Answer 31

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

Question 32

What is the common treatment for GCTs

Answer 32

Surgical curettage with liquid nitrogen freezing

Question 33

MC location of osteoblastoma

Answer 33

neural arch followed by long bones

Question 34

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

Answer 34

Osteoblastoma

Question 35

True or false; osteoblastomas are typically asymptomatic

Answer 35

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

Question 36

"rain drop skull" is associated with

Answer 36

Multiple myeloma

Question 37

True or false; Multiple myeloma commonly affects the skull

Answer 37

true "rain drop skull"

Question 38

Age of occurrence in chondrosarcoma

Answer 38

usually over 50 years

Question 39

True or false; Chondrosarcoma typically causes pain quickly after development

Answer 39

false; has late development of pain

Question 40

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

Answer 40

2-10 years

Question 41

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

Answer 41

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

Question 42

What is onchondromatosis/Ollier's disease?

Answer 42

Multiple enchondromas causes deformity in hands and feet

Question 43

True or false; ABCs are typically slow growing

Answer 43

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

Question 44

True or false; Multiple myeloma likes the diaphseal region

Answer 44

true

Question 45

Where does ewing's sarcoma like to be in bone

Answer 45

diaphyseal region

Question 46

A double density sign on bone scan is associated with

Answer 46

osteoid osteoma

Question 47

Fluid fluid levels =

Answer 47

ABCs

Question 48

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

Answer 48

Thick sclerotic ring - fibrous dysplasia

Question 49

What disease is osteoporosis circumscripta associated with

Answer 49

paget's disease (stage 1 - lytic)

Question 50

Rim sign in the pelvis =

Answer 50

Paget's disease (stage 2 - mixed)

Question 51

One eyed pedicle sign =

Answer 51

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

Question 52

Blade of grass sign =

Answer 52

Paget's disease in long bones

Question 53

Picture frame vertebrae =

Answer 53

paget's disease in vertebrae

Question 54

Ivory vertebrae =

Answer 54

Metastatic bone dz Paget's Lymphoma

Question 55

Only 2 pathologies women are more likely to get

Answer 55

ABCs and Hemangiomas