Introduction:

Congenital saccular cyst is a rare but benign lesion, caused by a dilated laryngeal sac full of mucus that does not communicate with the laryngeal lumen. Its definitive treatment is surgical according to the literature.

Objective:

To review the literature and report a case of congenital laryngeal saccular cyst, as well as its treatment by endoscopic approach and radiofrequency, which is most easily found in our country.

Materials and methods:

Presentation of a case report and literature review in PubMed and Tripdatabase using the described keywords.

Results:

This is a rare condition with an incidence of 1.82 cases per 100 000 live births. Diagnosis is achieved by laryngeal endoscopy, images or clinical review. The case reported here corresponds to a newborn patient with respiratory distress and stridor, who was diagnosed with laryngeal saccular cyst that was resected surgically by means of endoscopy and radiofrequency, with no subsequent recurrence.

Discussion:

Understanding this disease is highly important to achieve proper diagnosis and provide treatment using the resources available in our country, such as radiofrequency.

Conclusions:

Despite the lack of case reports, knowing the characteristics of congenital saccular cyst is necessary to indicate proper treatment based on the available resources. It is possible to perform endoscopic resection of this lesion if it is <3cm by means of radiofrequency, which is a safe and effective method.

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