Diffuse large B cell lymphoma of the rectosigmoid junction: case report and literature review

Primary colorectal lymphoma [PCL] is a rare condition that accounts for a small percentage of all gastrointestinal [GI] malignancies. There are several reports in the literature regarding the most common features of PCL. However, primary lymphoma in the rectosigmoid junction has been rarely reported. Our case was a 67-year-old male who presented with non-specific symptoms of bowel obstruction which, upon further workup, was diagnosed as a rare case of PCL located in the rectosigmoid junction