urachal fistula


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Related to urachal fistula: patent urachus, Urachal cyst, urachal ligament

u·ra·chal fis·tu·la

an abnormal passage or fistula between the urinary bladder and the umbilicus.
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Incomplete closure of this embryological communication may result in a urachal fistula, urachal sinus, urachal cyst or urachal diverticulum (Fig.
Urachal fistula is the commonest of urachal anomalies (48% of cases), followed by urachal cyst (31%).
Distal obstruction to the urinary tract must be excluded in patients with a urachal fistula.