Summary
Nevus of ota is a dermal melanocytosis common among Asian patients, mottled, blue‐gray macule that is usually located unilaterally within the distribution of the first and second branches of the trigeminal nerve and almost always responds well to treatment with Q‐switched lasers (eg, ruby, alexandrite, and Nd: YAG). In spite of the plethora of science behind laser‐tissue interactions, the objective evaluation of nevus of ota response to laser is not on firm footing and most studies report subjective percentile scoring improvement. A knowledge of the variations in morphology of nevus of ota can help predict an optimal dose response and help to counsel patients appropriately.
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