Right-Crossed, Fused Renal Ectopia L-Shaped Kidney Type with Urinary Chyluria

Area of Science:

• Nephrology
• Urology
• Medical Case Reports

Background:

• Crossed fused renal ectopia is a congenital anomaly where both kidneys are located on one side and are fused.
• Chyluria, the presence of chyle in the urine, can be caused by various conditions, including lymphatic abnormalities and infections.

Observation:

• A patient presented with milky urine, indicative of chyluria.
• Diagnostic imaging revealed an L-shaped fused kidney, a rare form of crossed fused renal ectopia.
• A fistula connecting the renal pelvis was identified as the likely cause of chyluria.

Findings:

• The patient had a rare combination of crossed fused renal ectopia and chyluria.
• An L-shaped fused kidney and a renal pelvis fistula were confirmed as the underlying pathology.
• Renal pelvic instillation sclerotherapy proved effective in treating the condition.

Implications:

• This case highlights the importance of considering rare congenital anomalies in patients with chyluria.
• Renal pelvic instillation sclerotherapy is a viable and effective treatment option for chyluria secondary to renal pelvis fistulas.
• Further research into the management of complex renal fusion anomalies and associated chyluria is warranted.