Bilateral Crossed "Unfused" Renal Ectopia.

Area of Science:

• Urology
• Radiology
• Congenital Anomalies

Background:

• Ectopic kidney, including crossed or uncrossed forms with or without fusion, is a frequent congenital anomaly.
• Standard imaging for renal ectopia includes ultrasonography, IV pyelography, and contrast-enhanced CT.
• Accurate diagnosis is crucial for managing potential complications and associated renal dysfunction.

Observation:

• A rare case of incidentally detected bilateral crossed renal ectopia without fusion is reported.
• The condition was identified using Technetium-99m diethylenetriamine pentaacetic acid (Tc-DTPA) scintigraphy.
• Initial ultrasonography results were inconclusive, and the patient presented with deranged renal function.

Findings:

• Tc-DTPA scan confirmed bilateral crossed renal ectopia without fusion.
• This finding was unexpected given the inconclusive initial ultrasonography.
• The presence of deranged renal function in conjunction with the anomaly warrants further investigation.

Implications:

• This case underscores the utility of Tc-DTPA scintigraphy in diagnosing complex renal anomalies.
• It highlights the importance of considering rare diagnoses even with inconclusive initial imaging.
• Understanding such anomalies is vital for appropriate patient management and prognosis.