The gastrointestinal tract of animals is adapted to their primary source of food to optimize resource use and energy intake. Temperate bat species mainly feed on arthropods. These contain the energy-rich carbohydrate chitin, which is indigestible for the endogenous enzymes of a typical mammalian gastrointestinal tract. However, the gastrointestinal tract of bat species should be adapted to thei...

The sonographic evaluation of the gastrointestinal tract regards experienced sonographers who are able to identify all abdominal and parenchymal structures. Transabdominal ultrasonography allows the evaluation of the entire digestive tract, starting with the oesophagus (especially the oesogastric junction), followed by the examination of the stomach, duodenum and small bowel, and ending with th...

Received October 2009 Accepted November 2009 INTRODUCTION A gastrointestinal stromal tumor (GIST) is primarily located in the gastrointestinal tract. It is classified as a mesenchymal tumor that shows a CD117 (c-KIT)-positive mesenchymal spindle or epithelioid neoplasm. Tumors outside the gastrointestinal tract that were histologically similar to GISTs and showed immunopositivity for CD117 were...

Zygomycosis is a fulminant infection which usually afflicts patients who are immunocompromised by diabetes mellitus, malignancy or immunosuppressive therapy.l This disease is a rare but highly invasive fungal infection which occurs in organ transplant recipients. 2 Mucormycosis confined to the gastrointestinal tract is an uncommon form of the disease. accounting for only seven percent of al...

In this chapter, diseases of the gastrointestinal tract that primarily affect areas other than the oral cavity are discussed. This chapter is not intended to be a complete review of all diseases affecting the gastrointestinal tract; rather, emphasis is on the medical aspects, the dentist’s role as a primary health care provider in screening for undiagnosed conditions, and the dentist’s role in ...

Escherichia coli (E. coli) is a rod-shaped, gram-negative bacillus normally found in the lower gastrointestinal tract and is part of the normal intestinal flora. In hospital settings, E. coli most commonly causes urinary tract infections. Respiratory tract infections due to E. coli are uncommon, though there have been several published reports that chronicle E. coli pneumonia in the pediatric i...

Endoscopic ultrasound (EUS) provides high-resolution and real-time visualization of various layers the gastrointestinal (GI) tract beyond by combining technology with endoscopic [...]

BACKGROUND Claudins, being part of the tight junction protein family, partially determine the integrity and paracellular permeability of the intestinal epithelium. The aim of this study was twofold. First, the authors set out to create an overview of claudin mRNA expression along the proximal-distal axis of the healthy human intestine. Second, the authors aimed to analyze expression levels of c...

Eosinophilic disorders of the gastrointestinal tract are increasingly rare but remain an important cause of long-standing gastrointestinal symptoms. Diagnosis is usually delayed because the disease mimics other inflammatory disorders and is often not suspected initially. We report a series of four cases to highlight the various imaging appearances of this condition. Two patients...

this investigation was undertaken to verify the prevalence of helminths parasites in the gastrointestinal tract of catfish. a total number of 116 catfish (silurus glanis) were collected from zarrine-roud river and examined for helminths. fish were examined after washing contents of gastrointestinal tract and observed for the presence of helminths using a stereo microscope and a light microscope...