Acquired Hemophilia A In Adults: A Multicenter Study from Turkey.

Acquired hemophilia A (AHA) is a rare disease caused by autoantibodies inhibiting factor VIII (FVIII) activity. Although the conditionis usually idiopathic, there may be other underlying diseases. Treatment consists of two steps: treatment of acute bleeding and immunosuppression.

Langerhans cell histiocytosis: A rare cause of pathological rib fracture.

Langerhans cell histiocytosis, formerly known as histiocytosis X, represents clonal proliferations of the antigen-presenting dendritic cells, which are normally found in many organs. It is a rare disease which tends to affect children and adolescents. In particular, adult-onset type is very rare.