[Inflammatory intestinal tumor as a cause of thrombocytopenia].

The acquired thrombocytopenia is part of a large number of diseases caused by a variety of different factors. Besides the classical failure of bone marrow proliferation respectively the replacement of the bone marrow with malignant cells, there are immunological disorders and many substances which may cause thrombocytopenia. The diagnosis of an "idiopathic thrombocytopenia" is sometimes posed even at the end of intensive diagnostic efforts. Possibly a benign neoplasia is also to cause a massive decrease of thrombocytes. We observed preoperatively in one patient with extensive stenosis of the sigma, caused by an inflammatory tumor a thrombocytopenia with a level under 50,000/ml. A normalization in thrombocyte blood counts appeared spontaneously after tumor resection.