Final answer:
The incision type for removing a polyp in the gastric fundus depends on the surgical approach and may vary; common types include transverse, vertical, oblique, or circular, but endoscopic methods often obviate the need for external incisions.
Step-by-step explanation:
The type of incision made to remove a polyp in the gastric fundus is not specified by a fixed rule; rather, it depends on several factors including the location, size, and nature of the polyp as well as the surgeon's preference and the surgical approach being used. Generally, endoscopic techniques allow for removal of gastric polyps without the need for external incisions. However, if an open surgery is required, which is less common, the surgeon might choose among various types of incisions taking into consideration the best access to the fundus and minimizing potential complications. The incision types listed, such as transverse, vertical, oblique, or circular, may be utilized in different surgical procedures but are not specific to polyp removal in the gastric fundus.