The dilemma of the multicystic dysplastic kidney
G. E. Hartman, L. M. Smolik and S. J. Shochat
Multicystic dysplastic kidney is the most frequent cause of an abdominal
mass in the neonate, but controversy continues as to the optimal management
of these lesions, since little is known about their natural history.
Experience with two complicated cases and a review of reports of retained
multicystic dysplastic kidneys suggest that such lesions pose a significant
risk to their hosts. Malignancy, reversible hypertension, pain, and mass
effect have been associated with retained lesions. Infection is another
potential hazard that is frequently cited but poorly documented in the
literature. In light of the currently low morbidity and mortality
associated with operation and anesthesia in the neonatal period, resection
appears to be the treatment of choice for the neonate with a multicystic
dysplastic kidney.
