Linitis plastica of the colon is an uncommon presentation of primary colorectal cancer. This entity of colorectal cancer is characterized by a diffuse infiltrating tumor with desmoplastic reaction and poor prognosis. Although widespread infiltration is the main feature of linitis plastica, the tumor extending to more than 2 segments of the colon is uncommon. We report a case of primary linitis plastica involving the entire colon, ileum and appendix. The clinical characteristics are discussed with a review of literatures.
Adult ; Appendiceal Neoplasms/*pathology ; Colonic Neoplasms/*pathology ; Humans ; Ileal Neoplasms/*pathology ; Linitis Plastica/*pathology ; Male

Primary gastric carcinoma is the most common cause of linitis plastica. Less frequently, metastatic gastric cancer from the breast, omental metastases and non-Hodgkin lymphoma involving the stomach have been reported to show similar radiographic findings as for linitis plastica. A metastatic gastric cancer from bladder cancer is extremely rare. We present an unusual case, the first to our knowledge, of gastric linitis plastica that resulted from a metastatic urothelial carcinoma of the bladder.
Diagnosis, Differential ; Humans ; Linitis Plastica/radiography/*secondary ; Male ; Middle Aged ; Stomach Neoplasms/radiography/*secondary ; Tomography, X-Ray Computed ; Urinary Bladder Neoplasms/*pathology