Page: 1 (Benign Bone Tumors)

Question 1

_____: refers to the most common BBT of the APPENDICULAR SKELETON?

a. ) Osteoma
b. ) Osteoblastoma
c. ) Osteochondroma
d. ) Hemangioma
e. ) Endchondroma

Answer 1

c.) Osteochondroma

Question 2

_____: refers to the most common BBT of the HAND?

a. ) Osteoma
b. ) Osteoblastoma
c. ) Osteochondroma
d. ) Hemangioma
e. ) Endchondroma

Answer 2

e.) Endchondroma

Question 3

_____: refers to the most common BBT of the SKULL?

a. ) Osteoma
b. ) Osteoblastoma
c. ) Osteochondroma
d. ) Hemangioma
e. ) Endchondroma

Answer 3

a.) Osteoma

Question 4

_____: refers to the most common BBT of the SPINE?

a. ) Osteoma
b. ) Osteoblastoma
c. ) Osteochondroma
d. ) Hemangioma
e. ) Endchondroma

Answer 4

d.) Hemangioma

Question 5

_____: refers to the most common BBT of the NEURAL ARCH?

a. ) Osteoma
b. ) Osteoblastoma
c. ) Osteochondroma
d. ) Hemangioma
e. ) Endchondroma

Answer 5

b.) Osteoblastoma

Question 6

Osteoma’s are most commonly found in which sinus?

a. ) Maxillary sinus
b. ) Ethmoid sinus
c. ) Frontal sinus
d. ) Sphenoid sinus

Answer 6

c.) Frontal sinus

Question 7

Which of the following radiographic views best depicts an Osteoma?

a. ) Water’s
b. ) A-P Towne’s
c. ) P-A Caldwell projection
d. ) Lateral skull

Answer 7

c.) P-A Caldwell projection

Question 8

_____: refers to multiple bone islands?

a. ) Enostoma
b. ) Osteopoikilosis
c. ) Fibrous dysplasia
d. ) Neurofibromatosis

Answer 8

b.) Osteopoikilosis

Question 9

_____: refers to single bone islands?

a. ) Enostoma
b. ) Osteopoikilosis
c. ) Fibrous dysplasia
d. ) Neurofibromatosis

Answer 9

a.) Enostoma

Question 10

_____: patient with “cafe au lait” spots with the “Coast of California” appearance has?

a. ) Enostoma
b. ) Osteopoikilosis
c. ) Fibrous dysplasia
d. ) Neurofibromatosis

Answer 10

d.) Neurofibromatosis

Question 11

_____: patient with “cafe au lait” spots with the “Coast of Maine” appearance has?

a. ) Enostoma
b. ) Osteopoikilosis
c. ) Fibrous dysplasia
d. ) Neurofibromatosis

Answer 11

c.) Fibrous dysplasia

Question 12

_____: refers to a radiolucent central nidus with severe reactive sclerosis that is associated with night pain and relived by aspirin?

a. ) Aneursymal bone cyst
b. ) Simple bone cyst
c. ) Osteoid osteoma
d. ) Giant cell tumor

Answer 12

c.) Osteoid osteoma

Question 13

_____: found in a patient LESS than 20 y/o, located CENTRALLY in the DIAPHYSEAL/METAPHYSEAL?

a. ) Aneursymal bone cyst
b. ) Simple bone cyst
c. ) Chondroblastoma
d. ) Giant cell tumor

Answer 13

b.) Simple bone cyst (aka: “Unicameral bone cyst”)

Question 14

_____: found in a patient LESS than 20 y/o, located ECCENTRICALLY in the DIAPHYSEAL/METAPHYSEAL?

a. ) Aneursymal bone cyst
b. ) Simple bone cyst
c. ) Chondroblastoma
d. ) Giant cell tumor

Answer 14

a.) Aneursymal bone cyst

Question 15

_____: found in a patient LESS than 20 y/o, located in the EPIPHYSEAL/METAPHYSEAL?

a. ) Aneursymal bone cyst
b. ) Simple bone cyst
c. ) Chondroblastoma
d. ) Giant cell tumor

Answer 15

c.) Chondroblastoma

Question 16

_____: found in a patient 20-40 y/o, located in the EPIPHYSEAL/METAPHYSEAL?

a. ) Aneursymal bone cyst
b. ) Simple bone cyst
c. ) Chondroblastoma
d. ) Giant cell tumor

Answer 16

d.) Giant cell tumor

Question 17

_____: associated with “fallen fragment sign”?

a. ) Aneursymal bone cyst
b. ) Simple bone cyst
c. ) Chondroblastoma
d. ) Giant cell tumor

Answer 17

b.) Simple bone cyst (aka: “Unicameral bone cyst”)

Question 18

_____: associated with a “soap bubble appearance” (saponaceous)?

a. ) Aneursymal bone cyst
b. ) Simple bone cyst
c. ) Chondroblastoma
d. ) Giant cell tumor

Answer 18

d.) Giant cell tumor

Question 19

_____: associated with a vertical striations (corduroy cloth appearance)?

a. ) Hemangioma
b. ) Ollier’s disease
c. ) Maffucci’s syndrome
d. ) Fibrous dysplasia

Answer 19

a.) Hemangioma

Question 20

_____: associated with “rind sign”?

a. ) Hemangioma
b. ) Ollier’s disease
c. ) Maffucci’s syndrome
d. ) Fibrous dysplasia

Answer 20

d.) Fibrous dysplasia

Question 21

What is the most common form of Fibrous Dysplasia?

a. ) Endostotic
b. ) Hydrostotic
c. ) Monostotic
d. ) Polystotic

Answer 21

c. ) Monostotic
- It is usually asymptomatic until 2nd-3rd decade but can be seen throughout adulthood. After puberty, the disease becomes inactive, and monostotic form does not progress to polyostotic form.

• Monostotic = single bone
• Polystotic = multiple bones

Question 22

_____: refers to multiple Enchondromas?

a. ) Hereditary multiple exostosis
b. ) Ollier’s disease
c. ) Maffucci’s syndrome
d. ) Chronic osteomyelitis

Answer 22

b.) Ollier’s disease

Question 23

_____: refers to soft tissue calcification seen with Enchondromas?

a. ) Hereditary multiple exostosis
b. ) Ollier’s disease
c. ) Maffucci’s syndrome
d. ) Chronic osteomyelitis

Answer 23

c.) Maffucci’s syndrome

Question 24

_____: refers multiple Osteochondromas?

a. ) Hereditary multiple exostosis
b. ) Ollier’s disease
c. ) Maffucci’s syndrome
d. ) Chronic osteomyelitis

Answer 24

a.) Hereditary multiple exostosis

Question 25

Which of the following appears like an Osteoid Osteoma and cause night pain relieved by aspirin?

a. ) Enostoma
b. ) Chronic osteomyelitis
c. ) Osteoma
d. ) Giant cell tumor

Answer 25

b.) Chronic osteomyelitis (aka: “Brodie’s Abscess”)

Question 26

What type of appearance does Fibrous Dysplasia have?

Answer 26

“Ground Glass”

Question 27

Fibrous Dysplasia causes what deformities?

Answer 27

“Saber Shin” and “Sheppards Crook”

Question 28

Which of the following conditions is characteristic of physiologic resorption of normal bone replaced by fibrous tissue?

a. ) Neurofibromatosis
b. ) Hereditary multiple exostosis
c. ) Fibrous dysplasia
d. ) Chronic osteomyelitis

Answer 28

c.) Fibrous dysplasia

Question 29

Which of the following conditions is seen in familial history and presents with scoliosis, cervical kyphosis, vertebral body “scalloping” and IVF enlargement?

a. ) Neurofibromatosis
b. ) Hereditary multiple exostosis
c. ) Fibrous dysplasia
d. ) Chronic osteomyelitis

Answer 29

a.) Neurofibromatosis

Question 30

What are the characteristics of ALL Benign Bone Tumors?

Answer 30

• Encapsulated
• Short zone of transition
• Geographic lesion
• Incidental finding