<prompt> a patient presented with swelling in his right foot with multiple discharging sinuses.the leison did not respond to antibiotics the likely etiological agent would be ?actino maduranocardiaSPOROTHRIXmadurella mycetomatis  <response>: Madurella mycetomatis causes the majority of the cases with the black grains. It is imperfect dematiaceous mold with brown colonies and diffused honey-colord pigment. Causes of mycetoma Eumycetoma : caused by species of fungi as: 1-Madurella mycetomatis 2-Madurella grisea 3-Leptosphaeria senegalensis 4-Pseudallescheria boydii 5-Acremonium A.faciform, A.kiliense, A.recifei 6-Aspergillus spp. A. nidulans A. flavus ref : thomas habif 