Can kidney cysts be cancerous?

According to characteristics, kidney cyst is classified into two types: simple and complex kidney cyst. Generally speaking, simple kidney cyst won’t progress into kidney cancer, while complex kidney cyst is quite different. Simple kidney cyst has regular cyst lining and internal structure. read more

Complex cysts have walls within the outer wall or are a collection of small cysts. The latter can harbor cancerous masses. Many physicians use the Bosniak classification of renal cysts to determine follow-up. read more

Complex kidney cysts have 13%~90% likelihood for being kidney cancer. The more irregularities a complex renal cyst has and the larger it grows, the more potential it has or could become cancerous. If you have kidney cysts, you should first make out whether they are cancerous or not. read more