Bone tumours

Question 1

What is the most common benign bone tumour

Answer 1

Osteochondroma

Question 2

Osteochondroma - pathology

Answer 2

Bony outgrowth

Covered by cartilaginous cap

Question 3

Osteochondrma - location

Answer 3

Around epiphysis of long bones

eg Knee

Question 4

All osteochondromas remain completely benign. True or false?

Answer 4

False

- small malignant potential

Question 5

Enchondroma - location

Answer 5

Intramedullary
Metaphyseal
Hands and feet

Question 6

Enchondroma - pathology

Answer 6

Lucent (glowing) but has patchy sclerotic appearance

Question 7

Enchondroma is usually asymptomatic. True or false?

Answer 7

True

Question 8

Simple bone cyst - cause

Answer 8

Growth defect

Question 9

Simple bone cyst - pathology

Answer 9

Single cavity of benign fluid filled cyst

Question 10

Simple bone cyst - location

Answer 10

Long bones

Question 11

Giant cell tumour - X-ray appearance

Answer 11

Soap bubble

Question 12

Fibrous dysplasia - who gets it

Answer 12

adolescents

Question 13

Fibrous dysplasia - location

Answer 13

Head and neck

Question 14

Osteoid osteoma - pathology

Answer 14

Halo appearance

Question 15

Osteoid osteoma - clinical features

Answer 15

Intense constant pain

Worst at night

Question 16

Osteoid osteoma - management

Answer 16

NSAIDs

Question 17

Common sites of bony metastasis?

Answer 17

Breast 
Prostate 
Lung
Renal 
Thyroid

Question 18

Malignant primary bone tumours are more common in younger/older age groups?

Answer 18

Younger

Question 19

What is the most common malignant bone tumour?

Answer 19

Osteosarcoma

Question 20

Osteosarcoma is more common in old people. True or false?

Answer 20

False

- young people

Question 21

Osteosarcoma - location

Answer 21

Around the knee

Question 22

Osteosarcoma - definition

Answer 22

Malignant tumour which produces bone

Question 23

Osteosarcoma - genetics

Answer 23

Rb gene

Question 24

Osteosarcoma is untreatable. true or false?

Answer 24

False

Question 25

Chondrosarcoma - location

Answer 25

Pelvis

Question 26

Chondrosarcoma - age

Answer 26

Older

Question 27

Chondrosarcoma has fast metastatic potential?

Answer 27

False

- slow metastatic potential

Question 28

Chondrosarcoma is untreatable. True or false?

Answer 28

True

Question 29

Ewings sarcoma - who gets it

Answer 29

Adolescents

Question 30

Ewings sarcoma - location

Answer 30

Long bones

Question 31

Which malignant bone tumour has an onion skin appearance?

Answer 31

Ewings sarcoma

Question 32

Ewings sarcoma - genetics

Answer 32

chromosome 22

Question 33

Ewings sarcoma can commonly be confused with osteomyelitis. Why?

Answer 33

Raised inflammatory markers

Question 34

Ewings sarcoma - biopsy appearance

Answer 34

Small round blue tumours

- due to high N:C ratio

Question 35

What is different about prostate metastasis ?

Answer 35

Sclerotic metastasis

Question 36

Rhabdomyoma

Answer 36

Tumour of skeletal muscle

Question 37

Leiomyoma

Answer 37

Smooth muscle tumour

Question 38

Schwannoma

Answer 38

Tumour of nerves

Question 39

Haemangioma

Answer 39

Tumour of blood vessels

Question 40

Where does angiolipoma usually occur?

Answer 40

Forearm

Question 41

Angiolipoma is painful/painless

Answer 41

Painful

Question 42

Which tumour is most common to occur as a complication of previous radiotherapy?

Answer 42

Angiosarcoma