CD81 and paracoccidioidomycosis: It was previously reported that CD117 and CD81 positivity rates among patients receiving their initial treatment for PCM were 30% and 45%, respectively.7, 11, 15 In the present study, 35.88% of 131 patients tested were positive for CD117 expression, which was slightly higher than the previously reported,7, 15 and 40.46% of patients were CD81(+), which was slightly lower than that previously reported.11