A Rare Cause of Urachal Adenocarcinoma: Urachal Diverticle

Table 1

Clinical staging in urachal carcinomas.

Stage	Definition
I	Lesion limited to urachal mucosa
II	Lesion limited to urachus
III	Local extension
	(A) Local extension to bladder
	(B) Local extension to abdomen
	(C) Infiltration of the peritoneum
	(D) Extension to other local organs
IV	Metastatic extension
	(A) Regional lymph node
	(B) Distant metastasis