A 60-year-old male presents with swelling and pain in the knee. CT reveals a cartilage-forming tumor. His diagnosis would be:
A) chondrosarcoma.
B) rhabdosarcoma.
C) hyalinoma.
D) fibrosarcoma.

Question

Quizplus · Accepted Answer

The description of a cartilage-forming tumor and the patient's age are consistent with a diagnosis of chondrosarcoma, which is a malignant bone tumor that arises from cartilage cells. Rhabdosarcoma is a malignant tumor that arises from skeletal muscle cells, hyalinoma is a benign tumor that arises from hyaline cartilage, and fibrosarcoma is a malignant tumor that arises from fibrous tissue.

A 60-Year-Old Male Presents with Swelling and Pain in the Knee