A sporadic abdominal desmoid tumour case presenting with intermittent intestinal obstruction.

Desmoid tumours, also known as aggressive fibromatoses, are rare lesions having intermediate biological behaviour between benign fibrous lesions and fibrosarcomas. Although abdominal desmoids have an increased incidence in Gardner's syndrome, they are rarely found in isolated form. We report a barium study, ultrasound, computed tomography and magnetic resonance imaging findings of a case in a nine-year-old boy with intermittent nausea and vomiting. Although intraabdominal desmoids are usually detected as a solitary lesion in sporadic cases, the case presented here had two mesenteric lesions in the left upper quadrant. Intestinal obstruction and invasion of colon wall had occurred.