Abstract
A case of pityriasis lichenoides chronica (PLC) in a 4-year-old boy and a case of pityriasis lichenoides et varioliformis acuta (PLVA) in an 18-year-old pregnant woman were presented. The former case was diagnosed as PLC from the clinical features but showed dense lymphocytic and histiocytic infiltrates with diapedesis of red blood cells, whereas, the latter case with typical histological features showed post-delivery involution after a 16 month duration. From the clinical and histopathological findings of our cases, we favor the view that both PLC and PLVA should be considered as a single entity.