We present an unusual renal developmental disorder in a female infant and male sibling born in a subsequent pregnancy. Both children had prenatally diagnosed bilateral nephromegaly and survived for 6 and 10 days after birth, respectively. Both infants demonstrated the presence of bilaterally large cerebriform kidneys with numerous small lobulations containing immature glomeruli admixed with primarily intralobar nephrogenic rests without Wilms tumor. The pathology was most consistent with universal nephroblastomatosis with nephromegaly, a rare entity described in only 4 cases and in only 1 of these as a possible inherited disorder.
[Show abstract][Hide abstract] ABSTRACT: Nephroblastomatosis (NB) has been considered as a precursor of Wilms tumor (WT). The natural history of NB seems to present significant variation as some lesions may regress spontaneously, while others may grow and expand or relapse and develop into WT later in childhood. Although, most investigators suggest adjutant chemotherapy, the effect and duration of treatment are not well established. Children with diffuse perilobar NB, Beckwith-Wiedemann syndrome, and hemihypertrophy seem to particularly benefit from treatment. We discuss our experience on two cases of NB and we review the literature for the management of this rare condition.
07/2014; 2014:756819. DOI:10.1155/2014/756819
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