- Mucinous colon carcinomas with microsatellite instability have a lower microvessel density and lower vascular endothelial growth factor expression. Wendum, D., Boëlle, P.Y., Rigau, V., Sebbagh, N., Olschwang, S., Mourra, N., Parc, R., Trugnan, G., Masliah, J., Fléjou, J.F. Virchows Arch. (2003)