Quiz Case #3
A 65-year-old male presented with increasing pain and soft tissue swelling in the left knee area.
Matrix production demonstrated by CT scan
Microscopic findings, low power
What is your diagnosis?
Chondrosarcoma, grade 3
The hallmark of this neoplasm is:
High degree of cellular pleomorphism and mitotic activity
Coexistence of two components, a low-grade lesion and a high-grade sarcoma, with abrupt demarcation between them
Presence of tumor osteoid
Specific chromosomal abnormality
This is a self-assessment test. The results are neither collected nor stored.