Yaowalark SukthanaMario RiguntiChutatip SiripanthTeerachai KusolsukChalermchai ChintrakarnBoonchu KulpaditharomMahidol University2018-06-212018-06-212005-07-01Transactions of the Royal Society of Tropical Medicine and Hygiene. Vol.99, No.7 (2005), 555-557003592032-s2.0-18844384977https://repository.li.mahidol.ac.th/handle/20.500.14594/16570We report a case of sinusitis caused by mixed free-living amoebae, Acanthamoeba and Naegleria, in an immunocompetent host; this has not been documented before. Free-living amoebae should be considered in the differential diagnosis of pathogens that cause sinusitis with or without central nervous system involvement, especially when bacteria or fungi are not found by smear, biopsy or culture. © 2005 Royal Society of Tropical Medicine and Hygiene. Published by Elsevier Ltd. All rights reserved.Mahidol UniversityImmunology and MicrobiologyMedicineArticleSCOPUS10.1016/j.trstmh.2004.11.011