Background: Recent developments regarding the conservative management of multicystic dysplastic kidney disease (MDKD) have shown a reduction in the well-established practice of elective surgical treatment. It has been seen that in the majority of cases the evolution of MDKD is either partial or complete atrophy. The incidence of complications due to MDKD is very low. The aim was to study the ultrasound changes of MDKD in a group of patients from 1990, since this date the elective surgical procedure had been eliminated.
Materials and methods: This group consisted of 16 patients. The diagnosis in each patient was confirmed by ultrasound and isotopic examinations. Other investigations were performed where there was a suspect of associated contralateral renal abnormalities or when a urinary tract infection occurred.
Results: Ultrasound follow-up revealed: no enlargement whatsoever in the kidney size in any patient; in 10 patients a reduction in the size of the MDK; in 3 patients a complete atrophy of MDK; in 3 patients there was no change at all. Five patients were found to have contralateral renal abnormalities. Compensatory hypertrophy of the contralateral kidney was present in all patients. No complications occurred. A nephrectomy was performed only in one patient aged 6 due to the express wishes of his parents.
Conclusions: The results agree with recently published literature that routine surgical removal of the MDK is unnecessary.