Fig. 3From: Erythroderma combined with deeper dermal dermatophytosis due to Trichophyton rubrum in a patient with myasthenia gravis: first case report and literature reviewFungal examination. a KOH wet mount and direct microscopic examination of the scrapings from the patient’s trunk showing abundant septate hyphae. ×200. b Small white fluffy and creamy yellow colonies were observed on potato dextrose agar plate after 1 week of culturing at 28 °C. c Macroconidia (black arrow) and microconidia (red arrow) were observed under lactate phenol medan staining with an optical microscope. Scale bar, 20 µmBack to article page