Histopathology of Cutaneous Leishmaniasis Caused by Leishmania donovani in Sri Lanka

Table 4

Categorization of cases according to modified Ridley index.

Group	Morphology	Organisms	No of cases (%)
Group 1	Parasitized macrophages with variable lymphocytes and plasma cells	+	8 (16)
Group 2	Parasitized macrophages with lymphocytes, plasma cells, and ill-formed histiocytic granuloma	+	19 (38)
Group 3	A mixture of macrophages (with or without parasites), lymphocytes, plasma cells, and epithelioid granuloma	+/-	17 (34)
Group 4	Epithelioid granulomatous response (with or without Langhans type multinucleated giant cells) with a few lymphocytes and plasma cells but no amastigotes	—	5 (10)
Nonspecific chronic inflammation with no amastigotes			1 (2)
Total			50 (100)