Jellyfish Sting-In Vivo Imaging for Diagnosis and Treatment Monitoring.

This case report describes the utility of dermoscopy and reflectance confocal microscopy (RCM) in confirming clinical diagnosis and monitoring treatment response in patients with jellyfish stings. Jellyfish stings are a common nuisance for sea bathers worldwide. Pelagia noctiluca is usually considered to be the most important species of jellyfish in the Mediterranean Sea owing to its widespread distribution, ecological role, and accidental interactions with humans.1 The common mechanism through which jellyfish discharge toxins during contact with their prey is attributed to structures called nematocysts, which are barbs studding the tentacles as well as the upper surface of the bell.1