[Conservative management of multicystic dysplastic kidney: clinical course and ultrasound outcome].

Objective: The aim of this study was to describe the clinical course and ultrasound outcome of prenatally detected multicystic dysplastic kidney.

Methods: Fifty-three children with unilateral multicystic dysplastic kidney detected by prenatal ultrasound between 1989 and 2004 were included in the analysis. All children were submitted to conservative management with follow-up visits every six months.

Predictive factors of ultrasonographic involution of prenatally detected multicystic dysplastic kidney.

Objective: To evaluate possible predictive factors of involution on ultrasonography (US) or disappearance of a prenatally detected multicystic dysplastic kidney (MCDK).

Patients And Methods: Forty-five children with unilateral MCDK detected by prenatal ultrasonography between 1989 and 2002 were analysed. All patients except one had (99m)Tc isotopic scintigraphy to confirm the absence of renal function in the MCDK.

Cholesteatoma of the upper urinary tract.

We report the case of a 57-year old patient with complex cystic image in right kidney. Following radical nephrectomy, the pathological study established the diagnosis of renal cholesteatoma. We discuss the frequency, pathogenesis, clinical presentation, propedeutics, histological findings and proposes for intervention observed in the literature.

Natural history of multicystic kidney conservatively managed: a prospective study.

We report the long-term clinical results of conservative management of children with unilateral multicystic dysplastic kidneys (MCDK). Between 1989 and 2002, 43 children with MCDK detected by prenatal ultrasonography were prospectively followed. At birth, ultrasonography confirmed the prenatal findings in all cases.

Outcome of apparent ureteropelvic junction obstruction identified by investigation of fetal hydronephrosis.

Objectives: The purpose of the study was to evaluate the outcome of prenatally detected ureteropelvic junction obstruction (UPJO) managed with a more conservative protocol.

Methods: The records and imaging studies of 77 consecutive neonates with UPJO identified by fetal hydronephrosis were reviewed. A nonoperative approach was attempted in patients with mild/moderate pelvic dilatation, renal units with good function as ascertained by DMSA scan and a non-obstructed pattern on DTPA.

Prognostic factors in prenatally-detected posterior urethral valves: a multivariate analysis.

To identify prognostic factors associated with chronic renal insufficiency in children with posterior urethral valves (PUV), 22 children with PUV were submitted to a systematic protocol and prospectively followed. Prognostic factors associated with fetal echography and clinical and laboratory findings were studied on admission. Median follow-up was 76 months.

Spontaneous improvement of hypertension in multicystic dysplastic kidney: a case report.

We report a case of transitory hypertension associated with unilateral multicystic dysplastic kidney (MCDK). A newborn girl with MCDK, detected by prenatal ultrasonography, was conservatively treated and has been followed for 18 months at the Pediatric Nephrourology Unit (HC-Belo Horizonte, Brazil). Arterial hypertension was observed at about 4 months of age and was associated with high levels of plasma renin activity and circulating angiotensin, and also with changes in renal Doppler ultrasonography.