01245nas a2200169   4500000000100000008004100001100001300042700001200055700001500067700001200082700001200094245006400106856007200170300001200242490000700254520081400261       2019                            d1 aSharma P1 aKumar A1 aTuknayat A1 aThami G1 aKundu R00aLucio Phenomenon: A Rare Presentation of Hansen’s Disease  uhttps://jcadonline.com/lucio-phenomenon-presentation-december-2019/  a35–380 v123 a Lucio phenomenon (LP) is a rare reactional state seen in cases of diffuse lepromatous leprosy. Lucio leprosy is a pure, primitive, and diffuse form of lepromatous leprosy. It is observed almost exclusively in Mexico and Central America and is considered a globally restricted phenomenon. However, isolated cases are being reported worldwide. Patients with Lucio leprosy often present with manifestations of LP, which includes purpuric macules with multiple and extensive areas of ulceration with bizarre-patterned, angulated borders mainly affecting the extremities. LP is difficult to recognize, especially in nonendemic countries, which can lead to a delay in its diagnosis and management. We report a case of LP due to its occurrence in the classical form of lepromatous leprosy and rarity in North India.