- clinical picture of OPC, characterized by creamy, white, curd like patches, removable by scraping or by typical erythematous lesions (smooth red patches) on the oral mucosa, hard or soft palate and/or dorsal surface of the tongue; and microbiologically by visualization of yeast cells in Potassium hydroxide (10% KOH) preparations prepared from swab of visible lesions and confirmed positive Candida species culture