Primary Ewing sarcoma of the kidney mimicking cystic papillary renal cell carcinoma in an older patient: A case report

Table 1 Clinical characteristics, treatment, and outcomes of five older patients with primary renal Ewing’s sarcoma of kidney

Case	Age	Sex	Size	Side	Presentation	Surgery	Other therapy	Recurrence or metastasis	Follow-up (month)	Status
Current case	76	M	11	R	Incidentally found	Nephrectomy	RTx	Local recurrence, carcinomatosis	10	Dead
1	69	F	5	R	Abdominal pain	Nephrectomy	CTx	Lung, bone	25	Dead
2	70	F	NA	NA	NA	Nephrectomy	CTx + INF	Lung	16	Dead
3	69	F	NA	NA	NA	Nephrectomy	CTx	Lung	22	Dead
4	73	M	NA	R	Incidentally found	Nephrectomy	CTx	No	7	Alive

RTx: Radiation therapy; CTx: Chemotherapy; INF: Interferon-γ.