Fig. 5From: Tumor thrombus formation in the right common iliac vein after radical proctectomy in a patient with rectal cancer: a case reportPhotomicrographs (hematoxylin and eosin, × 40 magnification). A Adenoid structures (white circles) were seen in the fibrous stroma. B Nipple-like structures (white circle) were seen in the fibrous stromaBack to article page