| [ Summary ] |
The endoscopic diagnosis and treatments for colorectal lymphomas of the polypoid form are described. Macroscopically, 40-50 % of colorectal lymphomas present in the polypoid form. The most frequent histologic type of polypoid lymphoma is MALT lymphoma, followed by diffuse large B-cell lymphoma (DLBCL), and other types, including follicular lymphoma or T-cell lymphoma. It is important to endoscopically distinguish these polypoid lymphomas from other neoplastic lesions, such as carcinoma, gastrointestinal stromal tumor (GIST), or carcinoid tumors. There are various treatment modalities for colorectal lymphomas, such as, surgery, chemotherapy, radiotherapy, antibiotic treatment, rituximab immunotherapy orwatch and wait strategy. The particular treatment strategy should be carefully determined based on the histologic type of lymphoma and the clinical stage of the disease. |