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MSK > Bone Tumors > Flashcards

Bone Tumors Flashcards

1
Q

Most common benign tumor of bone?

A

Osteochondroma

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2
Q

Most common tumor of bone?

A

Mets

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3
Q

Most common primary tumor of bone?

A

Multiple myeloma

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4
Q

Most common nonhematopoietic primary tumor of bone?

A

Osteosarcoma

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5
Q

Arises on surface of facial bones?

A

Osteoma

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6
Q

Presents with FAP + fibromatosis of retroperitonem + osteomas?

A

Gardner syndrome

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7
Q

Bone pain that resolves with aspirin?

A

Osteoid osteoma

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8
Q

Bone pain that does not resolve with aspirin?

A

Osteoblastoma

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9
Q

Difference in size bt osteoid osteoma and osteoblastoma?

A

Osteoid osteoma 2cm

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10
Q

Tumor of bone with an overlying cartilage cap?

A

Osteochondroma

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11
Q

Arises as a lateral projection from metaphysis?

A

Osteochondroma

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12
Q

Can transform into chondrosarcoma?

A

Osteochondroma

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13
Q

Assoc with familial Rb in children and Paget’s in elderly?

A

Osteosarcoma

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14
Q

Site of osteosarcoma?

A

Distal femur/proximal tibia at metaphysis

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15
Q

Codman’s triangle?

A

Osteosarcoma

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16
Q

Multinucleated giant cells and stromal cells?

A

Giant cell tumor (osteoclastoma)

17
Q

Only tumor that arises from epiphysis?

A

Giant cell tumor

18
Q

Soap-bubble appearance on x-ray?

A

Giant cell tumor

19
Q

Tumor derived from neuroectoderm?

A

Ewing’s

20
Q

X-ray appearance of Ewing’s?

A

Onion-skin

21
Q

S/S of Ewing’s?

A

Presents with mets, swelling of bone and fever (can be confused for osteomyelitis or lymphoma)

22
Q

Translocation of Ewing’s?

A

t(11;22)

23
Q

Benign tumor of cartilage?

A

Enchondroma

24
Q

Malignant tumor of cartilage?

A

Chondrosarcoma

25
Q

Arises in medulla of small bones of hands/feet?

A

Enchondroma

26
Q

Expansile glistening mass within medullary cavity?

A

Chondrosarcoma

27
Q

Punched-out lesions?

A

Mets

28
Q

Type of lesions seen in prostatic carcinoma?

A

Osteoblastic

29
Q

Epiphysis?

A

Giant cell tumor

30
Q

Metaphysis?

A

Osteochondroma, osteosarcoma

31
Q

Diaphysis?

A

Osteoid osteoma, Ewing’s

32
Q

Intramedullary?

A

Enchondroma, chondrosarcoma

33
Q

Sunburst pattern on x-ray?

A

Osteosarcoma (codman’s triangle)

34
Q

Arises within cortex of long bones (femur)?

A

Osteoid osteoma

35
Q

Where does osteoblastoma arise?

A

Vertebra

MSK (3 decks)

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