Crist, Henry Acute Invasive Fungal Rhinosinusitis: Frozen Section Histomorphology and Diagnosis with PAS Stain. [electronic resource] - Head and neck pathology Sep 2019 - 318-326 p. digital Publication Type: Journal Article ISSN: 1936-0568 Standard No.: 10.1007/s12105-018-0965-8 doi Subjects--Topical Terms: Frozen SectionsHumansImmunocompromised HostMycoses--diagnosisPeriodic Acid-Schiff Reaction--methodsRhinitis--diagnosisSinusitis--diagnosis