# Nasal Rhinomyiasis Caused by Cochliomyia hominivorax Complicated by a Parapharyngeal Abscess: A Case Report

## TL;DR

A 12-year-old patient was treated successfully for a rare nasal infection caused by fly larvae, which led to a throat abscess.

## Contribution

This case report presents a rare complication of nasal myiasis with a parapharyngeal abscess and its successful multidisciplinary treatment.

## Key findings

- Nasopharyngeal myiasis caused by Cochliomyia hominivorax larvae was diagnosed in a 12-year-old patient.
- The patient developed a parapharyngeal abscess requiring combined medical and surgical treatment.
- Multidisciplinary treatment including ivermectin, antibiotics, and endoscopic surgery led to a favorable clinical outcome.

## Abstract

Nasopharyngeal myiasis is a rare parasitic disease caused by Cochliomyia hominivorax larvae that affects the nasal cavity and paranasal sinuses. A 12-year-old adolescent presented with a lesion caused by a fly entering the left nostril, characterised by the emergence of larvae. Sinus tomography documented inflammatory changes consistent with ethmoid-maxillary sinusitis in the left nasal cavity and parapharyngeal abscess. Treatment included ivermectin for myiasis, clindamycin and cefotaxime for the abscess, and functional endoscopic sinus surgery (FESS) for cleaning and debridement. The patient's clinical course was favourable after multidisciplinary treatment, and she was discharged after improvement.