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Ureterocele (cobra head sign)

Case contributed by Mohammad Taghi Niknejad
Diagnosis certain

Presentation

Left flank pain.

Patient Data

Age: 30 years
Gender: Male
Fluoroscopy

Dilatation of the distal left ureter, surrounded by a thin lucent line resembling cobra head sign and consistent with ureterocele. 

Case Discussion

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

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