By G. Stevenson MD, N. C. Gourtsoyiannis MD (auth.), Nicholas C. Gourtsoyiannis MD (eds.)

This publication offers a accomplished account of imaging of the small gut. it truly is designed to symbolize either an in-depth consultant to medical perform and an updated reference resource for these engaged in imaging assessment of the small gut. particular descriptions and significant exams are given of the entire mostly hired options, together with ultrasonography, computed tomography, nuclear medication, diagnostic and healing angiography, and barium radiology. complete attention can also be given to the significant development completed in intestinal imaging in the course of contemporary years via strategies comparable to enteroscopy and MR-enteroclysis. Authoritative stories, written through best specialists within the box, are supplied on all the very important medical entities and stipulations. The textual content is richly illustrated with high-resolution photographs, a lot of them in colour. This e-book will function a special resource of knowledge and reduction to photograph interpretation for radiologists, gastroenterologists, gastrointestinal surgeons, pathologists, and oncologists.

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Leiomyomas may project into the lumen, remain largely intramural, or extend into the peritoneal cavity (Fig. 9). Pressure on the overlying mucosa can result in ulceration even in benign tumors. Fig. 8. Carcinoid tumor. High-magnification histological view of the same tumor seen in the previous two figures. 1 Leiomyoma Leiomyomas are benign tumors of smooth muscle. They are small (less than 5 cm in largest dimension), usually composed of sweeping bands of uniform spindie cells with blunt-ended nuclei (cigarshaped) with few mitoses [less than 5/50 high-power fields (HPFs)].

The ostomy has a typical smooth, round margin. Biliary epithelium seen on the other side of the ostomy is paler than the bowel mucosa Endoscopic Features Endoscopically, the mucosa is erythematous and friable but rarely bleeds spontaneously (Fig. 52). There are usually shallow ulcers that vary in size and are irregularly shaped. The ulcers are often located at anastomotic suture lines, but may be on the free wall of the pouch or on the nipple of a Koch pouch. Severe pouchitis may have features indistinguishable from recurrent inßammatory bowel disease, including edema, granularity, ulcers, friability, and spontaneaus bleeding.

1996). Most common in the distal duodenum and proximal jejunum, the organisms are difficult to identify on routine biopsies because they do not stain weil with hematoxylin and eosin. There may be no mucosal injury or slight villous atrophy. The spores are located supranudearly in the apical cytoplasm of the villous enterocytes. They stain with tissue Gram stain and Giemsa, and are birefringent under polarized light (Fig. 18). 4 /sospora belli Spores are located in the subnuclear basal cytoplasm of surface enterocytes.

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