Bone tumors

Question 1

Aneurysmal bone cyst

Answer 1

mosaic glass on MRI

Question 2

U in cage on mud

Answer 2

unicameral bone cyst

Question 3

A of NFC games

Answer 3

aneurysmal bone cyst

Question 4

Lytic Lesions in Metaphysis Mnemonic

Answer 4

Cage On Mud

Question 5

Osteoblastoma

Answer 5

most common tumor in teens at ends of long bones-“at end of a long fast, teens have a blast”
large >2cm, without surrounding reactive bone sclerosis as seen in osteoid osteoma

Question 6

O in FOGMACHINES

Answer 6

Osteoid osteoma/osteoblastoma

Question 7

M in FOGMACHINES

Answer 7

Metastasis/myeloma

Question 8

Infection

Answer 8

osteomyelitis-soft tissue swelling, resorptive bone changes….

Question 9

N of NFC games

Answer 9

Nonossifying fibroma

Question 10

Ewing’s sarcoma

Answer 10

moth eaten lesion in diaphysis, onion skin appearance, accompanied by a soft tissue mass

Question 11

most common malignant bone tumor in foot and ankle

Answer 11

chondrosarcoma

Question 12

What is the most common primary malignant tumor of bone in the body

Answer 12

myeloma-multiple punched out lesions

Question 13

HIP in COP BOBS HIP

Answer 13

hemangioma, infarct, prostate mets

Question 14

Bubbly lesions of bone mnemonic

Answer 14

NFC GAMES

Question 15

Osteoid osteoma

Answer 15

<2cm lesion surrounded by reactive bony sclerosis
<20yo
night pain relieved by ASA or NSAID

Question 16

G in FOGMACHINES

Answer 16

giant cell tumor

Question 17

E of NFC games

Answer 17

Enchondroma/Ewing’s sarcoma

Question 18

Non-ossifying fibroma

Answer 18

cousin of fibrous dysplasia, soap bubble appearance

Question 19

g in cage on mud

Answer 19

giant cell tumor

Question 20

A in Cage on mud

Answer 20

aneurysmal bone cyst

Question 21

N in FOGMACHINES

Answer 21

non-ossifying fibroma

Question 22

I in FOGMACHINES

Answer 22

infection

Question 23

e in cage on mud

Answer 23

enchondroma, ewing’s sarcoma

Question 24

F of NFC games

Answer 24

fibrous dysplasia

Question 25

Eosinophilic granuloma

Answer 25

endosteal scalloping

Question 26

Hemangioma capillary

Answer 26

fine capillary loops that radiate peripherally | Long striations with long lucencies

Question 27

Hyperparathyroidism

Answer 27

brown tumors-hemosiderin deposition, subperiosteal bone resorption is hallmark-especially in phalanges

Question 28

A in FOGMACHINES

Answer 28

aneurysmal bone cyst

Question 29

malignant bone lesions in 30-40 and 40+

Answer 29

30-40: fibrosarcoma, lymphoma | 40+: metastasis, myeloma, chondrosarcoma

Question 30

Subungal exostosis

Answer 30

similar to osteochondroma, starts out as a capillary hemangioma, has fibrocartilage cap, does not arise from epiphysis

Question 31

O in cage on mud

Answer 31

osteoblastoma, osteosarcoma, osteomyelitis

Question 32

Giant cell tumor

Answer 32

multinucleated tumor giant cells, without a border of periosteal new bone and sclerosis "massive in metaphysis) may met to lungs or transform to fibrosarcoma or osteogenic sarcoma

Question 33

Enchondroma

Answer 33

Bubbly, "end of bone with speckled tone", associated with Ollier's disease

Question 34

COP in COP BOBS HIP

Answer 34

chronic osteomyelitis, osteochondroma, paget's disease

Question 35

Malignant bone lesions in 10-30 year olds

Answer 35

osteosarcoma, ewing's

Question 36

fibrous dysplasia

Answer 36

non neoplastic, long lytic lesion in long bone

Question 37

C of NFC games

Answer 37

Chonrdosarcoma

Question 38

C in Cage on Mud

Answer 38

Chondroblastoma

Question 39

F in Fog machines

Answer 39

fibrous dysplasia

Question 40

chondromyxoid fibroma

Answer 40

chondroid tissue and intracellular mucin like substance

Question 41

Solitary bone cyst/unicameral bone cyst

Answer 41

in calcaneus-"best bet is middle facet", fallen fragment sign

Question 42

BOBS in COP BOBS HIP

Answer 42

breast mets, osteogenic sarcoma, bone island (most common), stress fx

Question 43

M of NFC games

Answer 43

Metastatic CA

Question 44

Osteochondroma

Answer 44

ceases growth at time of skeletal maturation, has a cap of hyaline cartilage and projects away from epiphysis from which it arises

Question 45

Mnemonic for radiolucent-type lesions

Answer 45

radiolucent=not solid white | FOGMACHINES

Question 46

H in FOGMACHINES

Answer 46

hyperparathyroidism, hemangioma

Question 47

C in FOGMACHINES

Answer 47

chondroblastoma/chondromyxoid fibroma

Question 48

metastasis/meyeloma

Answer 48

most probable cause of osteolytic mets in a child is neuroblastoma in adult male-CA of lung female-CA of breast CA of kidney and thyroid

Question 49

G of NCF games

Answer 49

Giant cell tumor

Question 50

D in cage on mud

Answer 50

desmoid tumor

Question 51

Osteogenic sarcoma/osteosarcoma

Answer 51

in places of active bone growth

Question 52

m in cage on mud

Answer 52

malignant fibrous histiocytoma (fibrosarcoma)

Question 53

S of NFC games

Answer 53

Solitary bone cyst

Question 54

chondroblastoma

Answer 54

chicken wire matrix-also consider osteoblastma in this age group when viewed on x-ray

Question 55

Chondrosarcoma

Answer 55

malignant transformation of an enchondroma, or by sarcomatous change in cartilage cap of an osteochondroma

Question 56

Hemangioma cavernous

Answer 56

thin walled vessels and sinuses lined by a single layer of endo cells in intimate relation with the bone trabeculae-causing resorption long striations with long lucencies

Question 57

Malignant lucent bone lesions in less than 1 and 1-10 year olds

Answer 57

neuroblastoma | ewing's sarcoma

Question 58

n in cage on mud

Answer 58

non-ossifying fibroma

Question 59

Solitary or multifocal Sclerotic lesions of bone mnemonic

Answer 59

COP BOBS HIP