| [ Summary ] |
Pedunculated submucosal invasive carcinoma is one of the most common form of early colrectal carcinoma. Diagnosing the invasive depth, especially of a slight submucosal invasion or massive one, is quite important because a slightly invasive carcinoma can be removed endoscopically. There are two type of findings which suggest massive submucosal invasive carcinoma. One of the specific findings, is evidenced by an overhanging of the normal mucosa and a hard sensation when touched with forceps. These findings indicate definite massive submucosal invasion. Other nonspecific findings which are sometimes observed even in intramucosal or slight invasive carcinoma are those, such as erosion, stiffness, and collapse. These findings suggest a possibility of deep submucosal invasion. According to these findings, such diagnoses should be made, for proper treatment. |