LST is generally a developmental tumor that appears laterally in the colon and is called a lateral developmental tumor because the tumor seldom invades the deeper layers of the intestinal wall vertically and spreads outward mainly along the mucosal surface.
LST was named by Japanese scholars in the 1990s for this tumor, which is characterized by lateral growth, deep roots and poorly defined borders, and is closely related to intestinal cancer. If LST is found during the examination in the hospital, it is a colon tumor, which is a bulging lesion of the colorectal mucosa, which is relatively rare.
If this tumor is found, patients can choose endoscopic resection under doctor’s guidance if it is suitable for their own situation, to prevent its malignant transformation, and should pay attention to the pathological situation after resection, to clarify the benignity and malignancy as well as to guide the active treatment after operation.
It is recommended to have regular medical checkups, and consult a doctor for any abnormalities in the body.