introduction: the most common symptom of brucellosis is osteoarticular manifestation. urogenital manifestation, hepatitis, cns and respiratory system involvement and endocarditis are also reported. mild leukopenia with lymphocytosis, anemia, thrombocytopenia and seldom pancytopenia is seen. case presentation: a 22-year-old man with fever and chills, abdominal pain and diarrhea came to the hospi...