Bone And Soft Tiss CA

Question 1

Secondaries

Answer 1

Prostate
Thyroid
Lung
Kidney
Breast

Question 2

Osteosarcoma

2nd most comm prim (to multip myeloma)

Answer 2

Px- non mech bone/jnt pain, noc pain, bony swelling, pathol frac.
Affs long bone metaph. Often teens.
XR- sunray spiculation, codmans triangle periost elevat.
Staging MRI and CTs
Mx- neoadjuvant chemo bef surg

Question 3

ewings sarcoma

Answer 3

Malig round cell tum of long bones and limb girdle, us diaph. Teens.
XR- bone destruc, onion ring sign new format, soft tiss swell, periost elevat.
Mx- chemo, surg, radio

Question 4

chondrosarcoma

Answer 4

Axial skel mid aged.
XR- popcorn calcificat
Mx- excision. Chemo and radio not work.