Role of mycology in accurate diagnosis of various fungal aetiologies in rhino/orbital diseases: 'needle in a haystack'

A 37-year-old man with no known comorbidities presented to our department with complaints of left eye proptosis and diminution of vision for 1 month and left facial swelling for the past 2 years. He underwent left-sided nasal surgery thrice—functional endoscopic sinus surgery (FESS) in 2018