Supernumerary Kidney With a Horseshoe Component.

Area of Science:

• Urology
• Medical Imaging
• Human Anatomy

Background:

• Supernumerary kidney is a rare congenital anomaly.
• Horseshoe kidney is the most common renal fusion anomaly.
• Complex renal anomalies can present with varied clinical symptoms.

Observation:

• A 40-year-old female patient presented with chronic, intermittent abdominal pain and heaviness.
• Initial ultrasonography revealed two left-sided kidneys and bilateral horseshoe kidneys.
• Further imaging confirmed a total of four renal moieties, with a horseshoe kidney formed by the distal left moiety.

Findings:

• The patient exhibited a complex supernumerary kidney with four distinct renal moieties.
• A horseshoe kidney was identified, with one component being unusually small.
• The anatomical arrangement involved three moieties on the left and one forming the horseshoe fusion.

Implications:

• This case highlights the importance of advanced imaging in diagnosing complex congenital renal anomalies.
• Understanding such variations is crucial for accurate diagnosis and surgical planning.
• This presentation expands the known spectrum of supernumerary and horseshoe kidney configurations.