Table 1.

A summary of clinical data for clear cell chondrosarcoma

Clear Cell Chondrosarcoma
Clinical Features	An extremely rare variant of chondrosarcoma
	More in adults between 3-5 decades of life
	Male predominance
	Usually in the proximal femur and humerus
	Long-standing symptoms as pain, pathologic fracture,...
Radiographic appearance	Not diagnostic, may mimic giant cell tumor or chondroblastoma
Behavior	Low-grade behavior
	Clear tendency for late recurrence and metastases
	Few cases behave aggressively
Treatment	"en bloc" resection
	A long time follow-up is necessary