Bone marrow involvement in Q fever - atypical case of hemolytic anemia.

Q fever is a systemic zoonotic infection with a wide range of clinical presentations leading to a laborious diagnosis. We present a case of a 28-year-old man who was diagnosed with acute Q fever with typical hepatic and bone marrow involvement, characterized by acute hemolytic anemia, which is not commonly associated with this disease. This underscores the importance of including Q fever in the differential diagnosis when facing unexplained systemic or hematologic abnormalities.