<prompt> Which of the following is the most common etiological agent in paranasal sinus mycosis?Aspergillus speciesHistoplasmaConidiobolus coronatusCandida albicans  <response>: a Aspergillus speciesRef. Cummings, 6th ed., 732The most common etiological agent in paranasal sinus mycosis is Aspergillus fumigatus. 