Objective: To document the clinical and imaging characteristics of fungal rhinosinusitis (FRS).
Methods: Imaging studies of 28 patients with FRS were retrospectively analyzed, considering the type of fungal disease, location, signal characteristics, bone changes, expansion, and extrasinus extension.
Results: Acute invasive FRS showed unilateral pacifications of the sinonasal cavity, perisinus fat infiltration and/or bone destruction. Chronic invasive FRS demonstrated masslike hyperattenuating soft tissue, with bony destruction. The soft tissue changes were hypointense on T1 and markedly hypointense on T2-weighted images. In allergic FRS, hyperattenuating soft tissue causing paranasal expansion due to allergic mucin was observed on CT. Fungus ball presented as a hyperattenuating lesion with calcifications within a single sinus.
Conclusion: The radiological features of each type of FRS are distinctive and should afford a specific diagnosis in the proper clinical setting.
From the Russell H. Morgan Department of Radiology, The Johns Hopkins Medical Institutions, Baltimore, MD.
Received for publication March 8, 2012; accepted June 5, 2012.
Reprints: Ahmet Turan Ilica, MD, The Johns Hopkins Medical Institutions, 600 N Wolfe St, Phipps B-100F Baltimore, MD 21287 (e-mail: firstname.lastname@example.org).
The authors report no conflicts of interest.