Magnetic resonance characteristics of an abdominal desmoid tumor

A case of desmoid tumor arising from the abdominal wall is presented. Although the mass was well demonstrated by contrast-enhanced computed tomography (CT), the typical fibroblastic nature of the tumor was best depicted by magnetic resonance (MR) imaging which also clearly showed the classic origin of the tumor from the anterior abdominal wall musculature. The overall extent of the lesion was also best demonstrated by MR imaging using both transaxial and coronal planes. Spin echo sequences with late echoes were useful in confirming the nature of this lesion.