In reports of clinical cases of leprosy one can read: ‘presence of papules and nodules or papulo-nodular lesions’. In a leprosy patient there can be present either papules or nodules but not these two elementary lesions together. It is reported in books of dermatology that: “papule is a solid elevated lesion up to 1 cm of diameter”. It is also reported: “papules are usually caused by an infiltr...