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2006-08-22-06-11 Multicystic kidney disease © Cuillier www.thefetus.net/


Multicystic kidney disease

Fabrice Cuillier, MD, Vicq JC, MD**, Scemama P, MD***, Fossati P, MD****

* Department of Gynecology, Félix Guyon’ Hospital ** Gynecologist, Jeanne d’Arc clinic  *** Radiologist, Chaussee’street **** Department of Radiology, Félix Guyon’Hospital, 97400 Saint-Denis, Ile de la Réunion, France

This is a  25-year-old primigravida. The patient has been taken medications for epilepsy since the age of 10. The triple test and the nuchal translucency were normal. The first scan at 12 weeks was also normal. At 24 weeks, an abnormal cyst was diagnosed on the pelvis. The fetus had a normal growth during all pregnancy.

The patient was referred to our antenatal unit at 26 weeks. Serial scans were performed at 26, 27, 28 and 30 weeks. The fetal anatomy was normal except the presence of a cyst in the right kidney. The right kidney was ectopic, located in the fetal pelvis.  The hypoechogenic cyst were located on the pelvis, in the right side of the bladder. There was a large cyst and several small ones, but we could not evaluate the corticomedullar differentiation. The left kidney had a normal corticomedullar differentiation.

The diagnosis seemed to be a right ectopic multicystic kidney, without corticomedullar differentiation in a male fetus. The diagnosis was confirmed by MRI at 30 weeks.

During the pregnancy, we noted a progressive atrophy of this right kidney. The delivered was vaginally (4000g). At day four, a postnatal scan was performed and confirmed the diagnosis. The baby was healthy.

 

Note the multicystic right kidney

Note the pelvic right kidney

MRI at 30 weeks

 

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