What are characteristics of tenia versicolor?

•Characterized by welldemarcated, tan, salmon, or hypopigmented or hyperpigmented patches, occurring most commonly on the trunk and arms •Macules will grow, coalesce and various shapes and sizes are attained in an asymmetric distribution •Visible scale is not often present, but when rubbed with a finger or scalpel blade, scale is readily seen. This is a diagnostic feature of tinea versicolor