Ureterocele - cobra head sign

Case contributed by Mohammad Taghi Niknejad
Diagnosis certain

Presentation

Left flank pain.

Patient Data

Age: 35 years
Gender: Female
Fluoroscopy

Dilatation of the distal left ureter, surrounded by a thin lucent line resembling cobra head sign and consistent with ureterocele. The left urinary drainage system is duplicated.

Case Discussion

The cobra head sign is an indicator of an uncomplicated ureterocele.

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