Abstract
Aspergillus is a fungus commonly found in the environment. The spores can affect the maxillary sinus, through oral-sinusal communication resulting from dental procedures. We report a case of a female patient, 48 years old, leukoderma, with complain of pain in the right infraorbital area and frontal region after endodontic treatment of tooth 16. Computed tomography revealed the presence of opacification and thickening of the right maxillary sinus. The tooth 16 was extracted and a pathological specimen was collected from the apical area. Histopathological analysis revealed presence of fungal hyphae, compatible with Aspergillus. After surgery, patient had no more pain and presented full healing in the area. It has been suggested that the extrusion filling materials for root canal maxillary sinus may predispose to aspergillosis, since filling materials containing zinc oxide promotes the growth of Aspergillus fumigatus and can allow its proliferation and metabolism. This case report highlights the importance of investigating the possible causes of persistent chronic sinusitis as well evaluate endodontic procedures and presence of filling materials near the sinuses.
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