Predictors of Recurrence and Patterns of Initial Failure in Localized Ewing Sarcoma: A Contemporary 20-Year Experience

Table 2

Patterns of failure and sites of first recurrence in patients with recurrence of initially localized or metastatic Ewing sarcoma.

		Localized	Metastatic
Number of patients		21	34
Metastatic site(s) at time of diagnosis	Lung only	—	11 (32%)
	Lung + other	—	10 (29%)
	Bone only	—	4 (12%)
	All other	—	9 (26%)
Pattern of first failure	Local	4 (19%)	1 (8%)
	Distant	14 (67%)	12 (54%)
	Both	3 (14%)	7 (38%)
Postrecurrence site(s) of distant metastases	Lung only	9 (53%)	4 (21%)
	Lung + other	5 (29%)	5 (26%)
	Bone only	2 (12%)	4 (21%)
	All other	1 (6%)	6 (32%)