Unusual Mesoblastic nephroma: a report of two cases

Congenital mesoblastic nephroma [CMN] is a very rare tumour of early infancy with 80% of the cases being diagnosed within the first month of life. Complete surgical excision is almost always curative. We report two unusual large renal tumours in a 22-month-old boy and a 4-year-old girl who were diagnosed preoperatively as rhabdoid tumour and Wilms' tumour respectively. One of them was subjected unnecessarily to preoperative chemotherapy. Histological evaluation after complete radical excision demonstrated CMN