Quiz Case #2
A 60-year-old male presented with a pathologic fracture of the right proximal humerus. His prior medical history was non-contributory.
Look at the
Plain radiograph demonstrates a large,
, vaguely lobulated tumor
centered in the metaphysis
stippled and ringed calcifications
, peripheral radiolucencies and cortical disruption.
Microscopic findings, low magnification
Q.1 What is your diagnosis?
Chondrosarcoma, Grade I
Chondrosarcoma, Grade II
Q2. What histologic parameters are assessed in grading of these tumors?
Degree of nuclear atypia
All of the above
This is a self-assessment test. The results are neither collected nor stored.