Solitary crossed renal ectopia

An 18-month-old girl had crossed ectopia involving a solitary left kidney. There have been 26 cases reported previously. Several theories for this occurrence are discussed.     

Transplantation of crossed fused renal ectopia

Crossed fused renal ectopia is a type of congenital fused anomaly of the kidney. This type of kidney, when encountered, can be used as a donor organ to provide useful solution to the critical shortage of available organs for transplantation.     

Seminoma associated with crossed fused renal ectopia

We report a case of seminoma associated with crossed fused renal ectopia and a duplicated vena cava. The impact of these congenital anomalies on the treatment of testicular seminoma is discussed.     

Familial inheritance of crossed fused renal ectopia

A family with dominant inheritance of a rare renal malformation is reported. The father and one son had left crossed fused ectopic and dysplastic kidneys and another son had a horseshoe kidney and vesicoureteral reflux. We discuss various potential pathogenetic mechanisms and propose that a defect in the timing of the proper reciprocal induction of the ureteric bud and the metanephric blastema is involved. Received: 30 June 2000 / Revised: 7 November 2000 / Accepted: 8 November 2000     

Irreducible inguinal hernia due to crossed testicular ectopia in an infant

The usual presentation of crossed testicular ectopia (CTE) is that of inguinal hernia with contralateral absent testis. We report on a 10-month-old infant with CTE, which presented as irreducible inguinal hernia. Diagnosis was made during surgery, as the child underwent an emergency operation for repair of his irreducible right inguinal hernia. A normal-sized and normal-shaped testis was found in the hernial sac with its blood vessels and vas deferens. A herniotomy with fixation of the ectopic gonad to the opposite hemiscrotum was done. The child remained asymptomatic 1 year postoperatively. Crossed testicular ectopia in infancy may present as irreducible hernia, requiring urgent surgery.     

Renal cell carcinoma in crossed fused renal ectopia

Crossed renal ectopia its a rare congenital malformation and in most cases it presents with fusion of both kidneys. Patients should be asynptomatic until 4a-5a decade and at that time they unfold urinary infection, urolithiasis, abdominal mass or pain that simulates a gastric disease. We report a case of renal cell carcinoma in a patient with crossed fused renal ectopia, showed in a Scan that was performed for gastric disease suspicion.     

A case report of crossed renal ectopia with renal stone

Crossed renal ectopia is a relatively rare renal anomaly. A 49-year-old man with macrohematuria and right flank pain was admitted to our hospital. Various urological examinations were carried out, and a diagnosis of left crossed renal ectopia with renal stone was made. Pyelolithotomy was performed and stone analysis revealed a calcium oxalate. In Japan, 166 cases of crossed renal ectopia have been reported and 15 of them including our case were associated with urinary tract stones.     

Two cases of crossed renal ectopia without fusion

Among congenital renal anomalies, crossed renal ectopia is relatively rare. We report two cases of crossed renal ectopia without fusion. One patient was a 26-year-old woman, admitted to our hospital with complaint of infertility. She was diagnosed to have hydrosalpinx on hysterosalpingography. Intravenous pyelography and renoscintigraphy disclosed crossed renal ectopia without fusion. We confirmed it on the operation of hydrosalpinx. The other was a 28-year-old man with complaint of hypospadia. Intravenous pyelography, retrograde pyelography and abdominal aortography disclosed crossed renal ectopia without fusion. These patients had subjectively no complaints, and the renal functions were unimpaired. So we decided to follow them up. In Japan there have been 30 reports of crossed renal ectopia including these cases. We performed a statistical study of the renal ectopia without fusion.     

Wilms' tumor in crossed fused renal ectopia.

The occurrence of a nephroblastoma in a crossed ectopic kidney has been reported only one previous time. A second patient with these findings is the subject of this report.     

Solitary crossed renal ectopia and its associated congenital anomalies

Solitary crossed renal ectopia is one of the rarest congenital renal anomalies, with only 21 previously reported cases. It is often accompanied by multisystem congenital anomalies, mainly skeletal and genital in type. The twenty-second such case of this rare congenital anomaly is reported in association with a severe congenital scoliosis of the lumbosacral spine. The embryogenesis and the significance of its associated congenital anomalies are discussed.     

Duplication of the male urethra associated with crossed renal ectopia

We report two cases of urethral duplication presenting with profound infravesical obstruction at birth. In both cases, left-to-right crossed renal ectopia was also present.