Lymphoreticular disorders of the gastrointestinal tract: roentgenographic features

Primary gastrointestinal lymphomas: a radiological-pathological review. Part 2: Small intestine

Primary lymphoma of the small intestine is a heterogeneous group of diseases reflected in its protean imaging features. This review illustrates the widespread appearances seen on imaging methods (primarily CT and barium studies) with pathological correlation.

Tumor and tumor-like lesions of duodenum: CT and barium imaging features

Neoplasms of the duodenum, either primary or secondary, are uncommon. However, imaging diagnosis for presurgical evaluation is extremely important due to complex regional anatomy. Computed tomography (CT) and barium-based double contrast examination (UGI series) are most frequently employed to evaluate the tumor invasion and intraluminal mucosal pattern. In this pictorial review, the CT and UGI series imaging features of benign and malignant duodenal tumors and tumor-like lesions are demonstrated and discussed.

Lymphomatous polyposis of the colon

Lymphoma of the colon is rare and has different radiographic presentations. The least common of these presentations is diffuse polyposis. Here we describe 4 cases of diffuse lymphomatous polyposis of the colon, each having a distinct radiographic appearance.