Case report: Actinomyces in Hand: An Unusual Cause of OsteomyelitisAlireza Khosravi 1, Alireza Ghanadan2, Alireza Hadizadeh 3, Mohammadsadegh Talebi Kahdouei 4, Fatemeh Aghaei5, Faezeh Salahshour6, Zahra Saffarian7*1. Mycology Research Center, Faculty of Veterinary Medicine, University of Tehran, Tehran, Irankhosravi@ut.ac.ir2. Professor of pathology department of dermatopathology, Razi hospital, department of pathology, cancer institute, Imam Khomeini Hospital Complex, Tehran University of Medical Science, Tehran, IranDermpath101@gmail.com3. Female Pelvic Medicine and Reconstructive Surgery (FPMRS), Division of Urogynecology, University of Chicago, Northshore University HealthSystem, Skokie, IL, USA4. Medical School, Tehran University of Medical Science, Tehran, IranTalebisadegh41@gmail.com5. Medical School, Tehran University of Medical Science, Tehran, IranFatemehaghaei825@gmail.com6.  Department of Radiology, Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences and Liver Transplantation Research Center, Imam Khomeini Hospital complex, Tehran University of Medical Sciences (TUMS), Tehran, Iransalahshour_faeze@yahoo.com faeze.salahshoor@gmail.com f-salahshour@sina.tums.ac.ir7. Assistant professor of dermatology, Dermatology Department of Imam Khomeini Hospital Complex, Tehran University of Medical Science, Tehran, IranSaffarianz@yahoo.com*Co-responder author:Assistant professor of dermatology, Dermatology Department of Imam Khomeini Hospital Complex, Tehran University of Medical Science, Tehran, IranSaffarianz@yahoo.com