Introduction.

During normal embryonic development, it is expected that the so-called urachus or median umbilical ligament will be obliterated at 32 weeks of gestation. In the face of incomplete obliteration, the different anomalies of the urachus arise. The most frequent anomaly of the urachus is the cyst followed by the umbilical urinary fistula. The objective of this article was to present the case of a young patient without comorbidities with urachal cyst.

Clinical case.

A 19-year-old indigenous woman consulted for mild hypogastric pain associated with urinary symptoms and abdominal distension. Renal colic was suspected at first, but due to ultrasound findings of an infraumbilical mass and high acute phase reactants, the diagnostic impression changed to sepsis secondary to an intra-abdominal abscess. After tomography and cystoscopy with urethral calibration, a small diverticulum was identified in the bladder dome, suggesting a diagnosis of persistent urachus, for which the patient was taken to surgery for its resection, with favorable evolution.

Discussion.

The urachal cyst is a rare abnormality, mostly asymptomatic and usually incidental finding in the elderly population. Imaging and multidisciplinary management are required for its correct diagnosis and approach.

Conclusion.

There are few reported cases of persistent urachus and much less in females. Given the possibility of late complications, follow-up is important for its management, in this case we have carried out control for 2 years.

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