Modified Staging System of Henly et al for Urachal Carcinoma (Mayo Staging System)

Extent of Tumor

Stage

confined to urachus

I

confined to the bladder

I

extending beyond the muscular layer of the urachus

II

extending beyond the muscular layer of the bladder

II

metastases to regional lymph nodes

III

metastases to nonregional lymph nodes

IV

metastases to other distant sites

IV

Stage

5 Year Cancer Specific Survival

10 Yr Cancer Specific Survival

I

63%

57%

II

55%

46%

III

19%

0%

IV

8%

0%