Peter Kružliak, Dušan Mištuna, Katarína Macháleková
Intraabdominal fibromatosis is a local, aggressive and non-metastazing proliferation. It is a benign tumor mostly found in the abdominal wall, mesenterium and in retroperitoneum. It occurs either with association with Gardner syndrome or sporadically. In many cases it causes differential-diagnostic problems in recognizing from myofibroblastic, fibroblastic and gastrointestinal stromal tumors, which are characteristic for their more aggressive biologic behavior and very often with metastazing. Differential diagnostics can be remarkably difficult in absence of loco-regional spreading and/or distant metastases and it represents a present problem because it is the right diagnosis that affects the selection of an adequate therapy. The authors describe the case of an 82-year-old patient with symptoms of acute abdomen who was operated on with the finding of diffuse peritonitis on basis of perforation of tumor of the ileum with large finding of diffuse, non-sharply limited spreading into the mesenterium and with penetration into the abdominal wall.