title: A rare case presentation of oral actinomycosis.
abstract: Actinomycosis is an infectious disease caused by a gram-positive anaerobic or microaerophilic Actinomyces species that causes both chronic suppurative and granulomatous inflammation. The following study reports a 48-year-old Iranian woman presenting with a spontaneous discharging sinus on the hard palate for 8months. The patient has no past medical history of note. Laboratory findings were unremarkable. The diagnosis was based on history and clinical evidence of the lesion confirmed by histopathological examination. The patient was treated with a regimen of oral ampicillin 500mg four times a day. She had a marked response to the treatment after 4weeks, and it was planned to continue the treatment for at least 6months with regular follow-up. To the best of the researchers' knowledge, this is the first report of actinomycotic sinus tract of the hard palate in Iran.
authors.affiliation: Infectious Disease and Tropical Medicine Research Center, Shahid Beheshti University of Sciences, Tehran, Islamic Republic of Iran.
authors.forename: Davood
authors.initials: D
authors.lastname: Yadegarynia
authors.affiliation: Infectious Disease and Tropical Medicine Research Center, Shahid Beheshti University of Sciences, Tehran, Islamic Republic of Iran; Azadi Teaching Hospital, School of Medicine, Faculty of Medical Sciences, University of Duhok, Duhok, Kurdistan, Iraq. Electronic address: muayadfaily@yahoo.com.
authors.forename: Muayad A
authors.initials: MA
authors.lastname: Merza
authors.affiliation: Infectious Disease and Tropical Medicine Research Center, Shahid Beheshti University of Sciences, Tehran, Islamic Republic of Iran.
authors.forename: Shahnaz
authors.initials: S
authors.lastname: Sali
authors.affiliation: Infectious Disease and Tropical Medicine Research Center, Shahid Beheshti University of Sciences, Tehran, Islamic Republic of Iran.
authors.forename: Ali G
authors.initials: AG
authors.lastname: Firuzkuhi
keywords: Actinomycosis; Discharging sinus; Hard palate