<prompt> A diabetic patients presents with black necrotic mass filling the nasal cavity. Most likely fungal infection isRhinosporidiosisAspergillosisMucormycosisCandidiasis  <response>: Mucormycosis 151 -Dhingra 4thMucormycosis - common in uncontrolled DM or taking immuno compressive drugs Invade arteries an causes endothelial damage and thrombosis Typical finding - presence of a black necrotic mass filling the nasal cavity and eroding the septum and hard palate Treatment - Amphotericin - B Surgical debridement filling the nasal cavity and eroding the septum and hard palate Treatment - Amphotericin - B surgical debridement Commonest fungeal infection in nose - Aspergillosis Rhinosporidiosis - is a fungal granuloma- caused by Rhinosporidium seeberi 