Kidney cysts are round pouches of fluid that form on or in the kidneys. Kidney cysts can
be associated with serious disorders that may impair kidney function. But more commonly, kidney cysts are a type called simple kidney cysts — noncancerous cysts that rarely cause complications. Cortical Cysts
The best Remedy that has shown me good results so fast is Fuchsinum.
Cortical substance of kidneys degenerated. Useful in cortical nephritis with albuminuria.

I have treated one case of Kidney cyst during pregnancy, with Cimicifuga. Mayur Tolat