A Case of Terminal Ileitis

A case of terminal ileitis followed by colonofiberscopic examination is reported. A 21-year-old man with anal bleeding was examined with a colonoscope. The lesion causing anal bleeding could not be detected but terminal ileitis was recognized. He was diagnosed and followed as Crohn\u27s disease. Three months after the first examination, the ileitis was found to be almost healed. Because of the possibility of asymptomatic terminal ileitis, endoscopists should direct their attention to not only the large intestine but also the terminal ileum

A Morphological Study of"Microfold" Cells of Lymphoid Aggregative Tissue in the Small Intestine of the Chicken

The morphology of lymphoid aggregative tissue of the small intestine was studied in the Japanese bantam chicken. Lymphoid aggregative tissue were composed of leaf-like villi unlike those in mammals. In the present study, these lymphoid aggregative tissues histologically were identified as Peyer\u27s patches. Light and electron microscopy of the covering epithelium of the Peyer\u27s patches showed that the cells had morphologically the same features of "Microfold" ("M") cells previously described in mammalian species. The authors demonstrated that the "M" cells of birds were not limited to the bursa of Fabricius, but also existed in the covering epithelium of the Peyer\u27s patches in the small intestine. The proportion of "M" cells enfolding lymphoid cells much in mature chickens (18%) than in mature rats (100%)

A Cystic Lymphangioma of the Colon Seen in a Patient with Early Gastric Cancer

Lymphangiomas are very rare benign neoplasms of the gastrointestinal tract. A case of cystic lymphangioma in the hepatic flexure of the colon seen in patient with early gastric cancer is reported and the literature is reviewed

Lymphangioma of the Small Intestine : A Case Report

Lymphangiomas of the small intestine are rare tumors arising from masses of dilated lymphatic vessels in the submucosa. There are 11 cases of lymphangioma of the small intestine in the Japanese literature. We report a case of lymphangioma of the jejunum seen in a 76-year-old female and discuss with clinical feature

An Endoscopic Case Report of Jejunal Leiomyosarcoma and Review of the Japanese Literature

Jejunoscopy for a small intestinal leiomyosarcoma was performed on a 73-year-old male. The patient was admitted because of a palpable abdominal mass. A barium meal study, abdominal ultrasonography, computed tomography and angiography suggested a leiomyogenic tumor with a central cavity arising from the jejunal loop extraluminally. Enteroscopy with a pediatric colonofiberscope (PCF) enabled us to observe a mucosal ulcer and a part of the cavity of the tumor. Histology of the resected tumor revealed it to be a leiomyosarcoma with a large central hollow connected to the mucosal ulcer. The authors discussed the endoscopic findings of 17 previously reported Japanese cases of jejunal leiomyosarcoma and the present case