True about Mucormycosis is

Mucormycosis occurs as a systemic infection following dissemination from a primary focus in the upper respiratory tract or nasal cavity. When the lung is the primary site of infection, the fungus may invade the aeries to cause thrombosis and infraction. They have aseptate hyphae. Ref: Textbook of Microbiology, Ananthanarayan and Paniker; 9th edition