Splenic angiosarcoma and iron deficiency anemia in a 43-year-old man.

Thrombocytopenia and microcytic anemia are two laboratory findings that alone or together suggest an underlying disease process. Both are found throughout particular age groups and have broad differential diagnoses. Angiosarcomas are rare neoplasms from the lining of blood vessels. Primary splenic angiosarcoma is an even rarer neoplasm, first reported in the late 1870s. We report a case of primary splenic angiosarcoma in a patient with thrombocytopenia, microcytic anemia, and splenomegaly.