Ultrasound Characteristics of Cutaneous Myiasis in a Pediatric Case

Cutaneous myiasis is a skin infestation caused by larvae of dipteran species, primarily Dermatobia hominis, which is most commonly encountered in tropical and subtropical regions. Individuals traveling from non-endemic areas are particularly susceptible, as they typically lack prior exposure to the insect, increasing the likelihood of infection. Myiasis presents in three clinical forms: furuncular, migratory, and wound. Of these, furuncular myiasis, which resembles a boil due to larval activity beneath the skin, is the most common form seen in travelers returning from endemic regions. However, it remains a rare cause of skin infections in pediatric populations in developed countries, largely due to limited exposure. Because the condition is unfamiliar to clinicians in non-endemic regions, diagnosis can be challenging, and the infection may initially be mistaken for other skin conditions. In such cases, ultrasound serves as a valuable diagnostic tool, allowing clinicians to identify live larvae beneath the skin. The imaging reveals the larval structure and its movement, aiding in distinguishing it from other dermatological conditions. Early detection through ultrasound can facilitate timely intervention, potentially preventing complications or prolonged infestation. This case highlights the importance of considering cutaneous myiasis in pediatric patients presenting with unexplained skin lesions, particularly in those with recent travel history to tropical areas. Increased awareness among clinicians in non-endemic regions can improve diagnostic accuracy and lead to better management of this rare yet significant condition.