Thedevelopmentof gastrointestinal endoscopes has been closely related to innovations in light sources and observation devices [1]. We anticipated that the lightemitting diode (LED) might be useful for innovation of the gastrointestinal endoscopesystemand started the development of a test scopewithwhite LEDson its tip [2, 3]. The LED gastrointestinal endoscope does not need a large light source ...

Cannabis has been used medicinally for centuries to treat a variety of disorders, including those associated with the gastrointestinal tract. The discovery of our bodies' own "cannabis-like molecules" and associated receptors and metabolic machinery - collectively called the endocannabinoid system - enabled investigations into the physiological relevance for the system, and provided the field w...

Constitutional lipid peroxidation in randomly selected 32 cases of clinically advanced carcinoma from human gastrointestinal tract (20 cases), breast (8 cases) and kidney (4 cases) was examined histochemically in frozen sections using cold Schiff's reagent. Only two cases of gastrointestinal carcinoma were positive by the reagent. Non-cancerous parenchymal cells were negative. These findings su...

Examination of the gastrointestinal system is an important skill for medical students and doctors. This article presents a comprehensive, concise and evidence-based approach to this examination which is consistent with The Principles of Clinical Examination [1]. We describe the signs of common and important diseases of the gastrointestinal system and, based on a review of the literature, the pr...

herein, we present the case of a child with acute lymphoblastic leukaemia who simultaneously developed probable invasive aspergillosis and was diagnosed with gi mucormycosis by histopathologic examination. the patient referred to the pediatric intensive ca re unit of ege university due to clinical deterioration and severe lower gastrointestinal system bleeding. main symptoms were abdominal dist...

Extramedullary plasmacytoma is a rare cause of nonobstructive colonic masses, which is often disregarded. Plasmacytoma is a neoplastic proliferation of plasma cells; when systemic involvement occurs, the disease is named multiple myeloma. Extramedullary plasmacytomas comprise 4% of all plasma cell tumours and occur mainly in the upper respiratory tract; gastrointestinal system involvement is ra...

1Department of Genetics, Washington University School of Medicine, St. Louis, MO 63110, USA 2Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada T6G 2H7 3Department of General Surgery, Tongji Hospital, Huazhong Science & Technology University, Wuhan, Hubei 430030, China 4Department of Medicine, University of Louisville, Louisville, KY 40208, USA 5Departm...

Quantitative and morphologic histochemical studies of the activity of the benz pyrene hydroxylase system in the gastrointestinal tract have been carried out. In nor mal rats activity is found only in the small intestine. In rats in which an increase in activity is induced by oral administration of 1,@-benzanthracene, activity is found throughout the entire gastrointestinal tract but varies in m...

although gastrointestinal involvement by metastatic malignant melanoma is common but primary gastrointestinal (gi) melanoma has been reported in rare cases. in this study we report two cases of primary gastrointestinal malignant melanoma that one of them is a known case of neurofibromatosis type 1(nf1). both cases showed no evidence of any lesions in skin and eye. malignant melanoma of gi tract...