Cross-fused renal ectopia associated with vesicoureteral reflux; a case report

Large Renal Calculus in a Patient With Crossed Fused Ectopic Kidney Managed With Percutaneous Nephrolithotomy: A Case Report

Congenital anomalies are not regularly seen in day-to-day practice. Crossed fused renal anomalies are even rarer. A 50-year-old female patient presented with right-sided pain in the abdomen with intermittent episodes of burning micturition. The patient was a known case of Mayer-Rokitansky-Kuster-Hauser syndrome. X-ray of the kidney, ureter, and bladder showed right-sided renal calculus. Computed tomography showed non-visualization of the left kidney in the left renal fossa but was crossed over to the right kidney with right renal pelvic calculus. A diagnosis of crossed fused kidney with calculus disease was made. Percutaneous nephrolithotomy was performed. With advancements in minimally invasive surgeries and imaging techniques, such large renal calculus in anomalous kidneys can be managed with good results.

Ureteric Stone Management in Crossed-Fused Renal Ectopia With Bilateral Duplex-Collecting System

Crossed-fused renal ectopia (CFRE) is a rare congenital anomaly where both kidneys are fused on the same side. We report a case of a 52-year-old male patient who presented with central abdominal pain associated with hematuria and dysuria, with a history of left open ureterolithotomy. Abdominal computed tomography (CT) showed an 18-mm left distal ureteric stone and a CFRE with a bilateral duplex-collecting system. Left ureteroscopy and laser lithotripsy with magnetic double-J stent insertion were carried out successfully, and the patient was discharged on the same day in fair general condition.

Case Report on Crossed Fused Renal Ectopia With a Large Calculus and Its Management

Among congenital renal anomalies, the ectopic kidney is a rare occurrence. Crossed fused renal ectopia (CFRE) - an even rarer subtype of ectopic kidney - is characterized by both kidneys being fused together on one side of the spine. CFRE is usually asymptomatic but can present with vague symptoms if the anomalous kidney becomes infected, is obstructed by calculus, or has a neoplastic change. There is no indication for surgical intervention if the kidney functions normally. This report presents a case of CFRE in a 31-year-old male with recurrent right flank pain resulting from a large calculus in the upper moiety of the fused kidney. The calculus was surgically removed by percutaneous nephrolithotomy (PCNL). The patient was discharged on analgesics, antibiotics, and potassium citrate tablets, with an order to follow up after one month. On follow-up, the patient’s double-J (DJ) stent was removed and an X-ray was performed to rule out any complications. No signs of stones, strictures, or other complications were noticed.

Crossed unfused renal ectopia with pelviureteric junction obstruction associated with nephrolithiasis: a rare troublesome triad managed by robotic surgery

We report a rare case of non-fused renal ectopia with pelviureteric junction obstruction and multiple pelvic and renal calculi thereby discussing vascular anatomy of the non-fused ectopic kidney along with robot assisted surgical management of this rare clinical entity which amounts for good preoperative workup for best surgical and clinical outcome.

Crossed fused renal ectopia: case report and review of the literature

Crossed fused renal ectopia is a rare congenital anomaly, and is mostly detected incidentally. A 45-year-old man, during investigation for recurrent abdominal pain, was found to have an empty left renal fossa and right crossed renal ectopia with fusion on ultrasonography. In the present case, there were no abnormalities and/or alteration of the renal function. Abdominal tomography scan with contrast medium confirmed the diagnosis. Ectopic kidney is often associated with other abnormal situations such as agenesis, vascular malformation, incontinence, a palpable abdominal mass, urinary tract infection, high incidence of stone formation, and genital anomalies. Through this case report, we emphasize the importance of adequate imaging.

Crossed fused renal ectopia in a Persian cat

Case summary

This report describes a rare case of crossed fused renal ectopia (CFRE) in a cat. A mature intact male Persian cat presented with bloody nasal discharge and ascites. Diagnostic studies revealed an ectopic left kidney fused with an orthotopic right kidney and a concurrent feline infectious peritonitis (FIP) infection. The FIP was responsible for clinical signs in this cat, while clinical signs associated with CFRE were not obvious. Despite receiving intensive treatment, the cat died. A post-mortem examination was not performed because the owners declined approval.

Relevance and novel information

To the best of our knowledge, this is the first report of L-shaped CFRE in a cat. In addition, this report describes the CT features of L-shaped CFRE in a cat.