The cutaneous findings pass through 6 stages that together last about 1 week: Stage 1 (papular): A single red edematous papule on a finger (most commonly right index finder) Stage 2 (target): A larger nodule with a red center surrounded by a white ring with a red periphery Stage 3 (acute): A rapidly growing, infected-looking tumor Stage 4 (regenerative): A nodule with black dots covered with a thin transparent crust Stage 5 (papillomatous): A nodule with a surface studded with small projections Stage 6 (regressive): A flattened nodule with a thick crust Patients can develop regional adenopathy, lymphangitis, and fever.