3c. Chondrosarcoma (Primary Neoplasms)

Question 1

What is a Chondrosarcoma?

Answer 1

Composed of cells derived from transformed cells that produce cartilage. Can be primary or malignant degeneration (enchondroma, osteochondroma)

Question 2

MC age range for Chondrosarcoma?

Answer 2

40-60

Question 3

MC in males or females?

Answer 3

Males

Question 4

When do pain and swelling occur?

Answer 4

Often very late

Question 5

Duration of symptoms?

Answer 5

2-5 years

Question 6

Location of occurrence?

Answer 6

Any bone preformed in cartilage…basically our entire skeleton, EXCEPT for our cranial vault.

Question 7

Chondrosarcoma is the MC primary malignancy of what bones?

Answer 7

Hand, Sternum, and Scapula

Question 8

Plain Film Findings?

Answer 8

• Large, lytic, poorly defined
• Calcification in 2/3rds
  - Popcorn, stippled, arcs and rings
• More calcification = less aggressive
• Endosteal scalloping

Question 9

What is a Clear Cell Chondrosarcoma (CCC)?

Answer 9

Round, sharply marginated lytic lesion in the epiphysis

Question 10

Will a clear cell Chondrosarcoma have sclerosis or calcifications?

Answer 10

May or may not…that’s super helpful, thanks

Question 11

Clear cell Chondrosarcoma is indistinguishable from ___?

Answer 11

Chondroblastoma

Question 12

Progression of CCC is usually ___?

Answer 12

Usually slow

Question 13

T or F: Treatment of choice is radiation

Answer 13

F (SURGICAL REMOVAL is treatment of choice)

Question 14

T or F: Mets is common with CCC

Answer 14

F (Mets is uncommon)