This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Scabies and other infestations, Subject name: Dental
A 42-year-old Bengali male presents with painless nodules over the face. The face is erythematous, and the surface of some of the large nodules is discolored. He gives history of insect bite in past while he went to the jungle for work. What is the most likely diagnosis? 
Select and explain. 
A. Leprosy, B. Chronic Fungal infections, C. Cutaneous Leishmaniasis, D. Cutaneous tuberculosis
C: Cutaneous Leishmaniasis
Answer: C: Cutaneous Leishmaniasis 
Explanation: H/o insect bite followed by the events leading to ulceration in a resident or traveller to an endemic focus strongly suggests cutaneous Leishmaniasis (CL). Post-Kala azar dermal Leishmaniasis: Hypopigmented lesions over trunk & Nodular lesions over face. Lymphocytes are the dominant cells. Demonstration of amastigotes in material obtained from a lesion remains the diagnostic gold standard.