[Multicystic renal dysplasia. Our experience with surgical treatment with early hospital discharge].

MRD is the most common form of renal cystic disease. It comprises severe dysplasia of the kidney, which adopts a non-reniform configuration, with the absence of a calyceal drainage system. Diagnosis is by ultrasound. Management of this non-functional mass has been traditionally surgical, although most recently a conservative approach with follow-up by periodical monitoring has been postulated by several schools.