Imaging of urachal anomalies

Area of Science:

• Radiology
• Embryology
• Urology

Background:

• Urachal anomalies arise from persistent embryonic urachal remnants.
• They are increasingly detected as incidental findings due to advanced imaging.
• Four main types exist: patent urachus, umbilical-urachal sinus, urachal cyst, and vesico-urachal diverticulum.

Purpose of the Study:

• To highlight the pivotal role of imaging in diagnosing urachal anomalies.
• To describe characteristic imaging features for each type of urachal anomaly.
• To emphasize the importance of timely diagnosis for preventing complications.

Main Methods:

• Review of imaging features of different urachal anomalies.
• Correlation of imaging findings with clinical presentation and pathology.
• Classification based on urachal remnant persistence.

Main Results:

• Patent urachus: elongated tubular structure from bladder to umbilicus.
• Umbilical-urachal sinus: focal dilatation at the umbilical end.
• Vesico-urachal diverticulum: anterosuperior bladder outpouching.
• Urachal cysts: midline fluid-filled sacs near the bladder dome.

Conclusions:

• Imaging is crucial for diagnosing urachal anomalies and guiding treatment.
• Characteristic imaging features aid in differentiating anomaly types.
• Early detection and management are vital to prevent complications like infection and malignancy.