Mesenteric myolipoma

Figure 1 Multidetector computed tomography axial image. A: The abdomen shows a mesenteric mass measuring 10 cm × 19 cm in its axial orientation with intact capsule (arrowed). The mass is mainly composed of adipose tissue with nodular lesions of soft tissue attenuation; B: The abdomen shows the diffuse nature of the lesion involving the entire mesentery with displacement of the bowel loops to the abdominal wall and separation of the mesenteric vessels.

Figure 2 Large tumor involves the entire mesentery with multiple irregular areas of necrosis.

Figure 3 The cut surface of the encapsulated tumor shows a dirty yellow and grey-white color with focal areas of necrosis. The resected small bowel segment is seen at the edge of the tumor on the right side with no evidence of infiltration.

Figure 4 Mixture of smooth muscle, adipocytes without evidence of atypical cells and partly ectatic vessels (HE × 50).