Thrombotic Thrombocytopenic Purpura in a Patient with Klinefelter Syndrome

Thrombotic thrombocytopenic purpura is a rare disease associated with microangiopathic hemolytic anemia, thrombocytopenia, fever, neurological disorders, and renal insufficiency pentad. It is a fatal hematologic emergency if left untreated. If plasma exchange is feasible, treatment is easy and comfortable. It should be kept in mind that such as in our patient may be acquired at all congenital illnesses.