Özet:

The term abdominal fibromatosis refers to sporadic, pelvic, and mesenteric lesions and to all the fibromatosis lesions seen in Gardner’s syndrome. Sporadic fibromatosis, however, is very rarer and literature offers a limited number of cases. The 14-year-old female patient presented to our clinic with complaints of indefinite abdominal pain in the epigastric area for the last 2 months, dyspeptic problems, and vomiting after eating. Upon the patient’s gastroscopy revealed a mass lesion pressuring the stomach, endoscopic ultrasonography was performed. A hyperechoic mass lesion of 9x5 cm thought to have originated from the pancreatic tail was detected. The mass was surgically excised. Although mesenteric fibromatosis shows the characteristics of a benign tumor pathologically, it is extremely aggressive clinically and has a very high rate of recurrence. These patients should be treated like they have malign tumors and surgeons should perform surgical resection as wide as possible

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