| acute new world cutaneous leishmaniasis presenting as tuberculoid granulomatous dermatitis. | acute primary cutaneous leishmaniasis typically presents microscopically with a lymphohistiocytic infiltrate containing admixed plasma cells, parasitized macrophages and abundant organisms. tuberculoid granulomatous changes may occur in the later phases of primary infection. a 23-year-old male presented 1 month after visiting peru with classic clinical findings of acute primary cutaneous leishmaniasis, while histopathology showed a tuberculoid granulomatous process that lacked any organisms in h ... | 2012 | 22236114 |