Case 1:

A 4-year-old female with a recurrent left cervical abscess due to a left piriform sinus fistula finally treated with endoscopic electrocoagulation without recurrences for more than 7 months.

Case 2:

6-year-old male with recurrent left cervical abscess due to left piriform sinus fistula treated with endoscopic electrocoagulation without recurrences for more than 6 months.

Discussion:

Piriform sinus fistulas are rare and are surgically corrected with extensive cervical dissections and occasionally hemithyroidectomies. They are not usually noticed as such until the recurrence. Although not all cervical abscesses are due to piriform sinus fistulas, we recommend ruling out in cases of recurrence, especially on the left side of the neck, accompanying by drainage with endoscopic exploration. If the suspicion is confirmed, electrocoagulation treatment is offered in the same intervention with better results by avoiding the risks involved in an extensive resection with conventional treatment. In our cases we use flexible endoscopy and electrocoagulation with better results compared to conventional surgical treatment.

Limitations:

These are only two cases, but they are rare.

Value:

Endoscopic treatment with electrocoagulation is shown as an alternative with better results in relation to traditional management for cases of piriform sinus fistula in children.

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