This document reviews 8 cases of minimal invasive conventional surgery for gastrointestinal cancer performed by Dr. Qalander H. Abdulkareem Kasanzani and colleagues. Minimal invasive surgery is defined as surgical procedures that cause the least physical and mental trauma to patients while achieving the same or better outcomes as conventional surgery. The document describes how some procedures can be performed minimally invasively using conventional surgical techniques without advanced technology. It then summarizes the materials and methods used in these 8 cases along with details on one representative case of a woman treated for stomach cancer.