Multiple Recurrent Congenital Mesoblastic Nephroma (CMN) in an Infant

Case Report

Austin J Clin Case Rep. 2014;1(8): 1036.

Multiple Recurrent Congenital Mesoblastic Nephroma (CMN) in an Infant

Govani DR1, Patel RV2 and Philip I2*

1Medical Student, University of Birmingham Medical School, UK

2Department of Pediatric Surgery, Royal Belfast Hospital for Sick Children, UK

*Corresponding author: Isaac Philip, Department of Pediatric Surgery, Royal Belfast Hospital for Sick Children, 180-184 Falls Road, Belfast, County AntrimBT12 6BE, Northern Ireland, UK

Received: July 10, 2014; Accepted: Aug 10, 2014; Published: Aug 11, 2014

Letter to the Editor

We wish to present a case of multiple recurrent congenital mesoblastic nephroma (CMN) in an infant and indicate that adjuvant chemotherapy consisting of doxorubicin and carboplatin is of benefit for long-term disease-free survival in recurrent CMN cases.

A one year-old girl born at 36/40 weeks gestation was noted to have increasing abdominal distension, pallor and weight loss of 4 weeks duration. She looked pale and was hypertensive (157/97). A firm non-tender mass with visible engorged veins and smooth surface was palpable in whole of the right side of abdomen extending from rib cage to the iliac crest. It was crossing the midline and measured 13 cm in diameter.

Full blood count showed hemoglobin of 110 g/L biochemistry including renal and liver functions, bone profile and tumour markers (alpha fetoproteins, beta human chorionic gonadotropins) were normal except elevated calcium at 3mmol/L. A radiograph of the chest and abdomen suggested a large mass in the right side of the abdomen (Figure 1). An ultrasound scan of abdomen showed a large mass occupying almost the entire right side of the abdomen with solid and cystic change within it surrounded by a pseudo capsule arising from the site of the right kidney. Left kidney was normal and measured 73mm in length.

CAT scan of chest and abdomen (Figure 1A) showed features of congenital mesoblastic nephroma (CMN) with solid and cystic components. There was a large abdominal mass extending from the right hypochondrium into the pelvis, that filled the entire right side of the abdomen and central part of the abdomen. It originated from the right kidney; enhancing renal cortex was visible stretched around the periphery of the kidney posterolaterally. The mass was of mixed attenuation, it has areas of enhancement and large areas of low attenuation in keeping with necrosis. The abdominal aorta was displaced antero laterally to the left by the mass. The inferior vena cava was displaced and compressed by the mass.