Female patient, 78 years old, who underwent surgery for coletithiasis. During surgery, multiple rounded tumors are found in the mesentery.  The largest tumor was found to invade the intestinal mucosa, it was ulcerated and occluding the lumen.  Thus, the surgeon decided to remove the whole intestinal segment affected. Two gross and two microscopic images (10X and 40X) are presented.

Immunohistochemistry showed strong positivity of the tumor cells to vimentin and negative for cytokeratine.

[See Histology]