Image:Benign gastric ulcer 1.jpg
维基百科，自由的百科全书
Benign_gastric_ulcer_1.jpg (400 × 408 画素, 档案大小： 28 KB, MIME type: image/jpeg)
[edit] Summary
| Description |
gastric ulcer This 1-cm benign gastric antral ulcer was discovered serendipitously in a gastrectomy specimen removed for adenocarcinoma of the fundus (not shown in the photo). The gross appearance is classic for a benign ulcer in that 1) it is relatively small, 2) the mucosa surrounding the ulcer base does not appear tumefactive, and 3) the radiating rugal folds extend nearly all the way to the margins of the base. Contrast this appearance with that of the malignant gastric ulcer included in this case collection. The criteria for grossly and endoscopically distinguishing benign ulcers from cancer are not absolute, which is why it is necessary to perform a biopsy on any non-healing gastric ulcer. Even biopsies are not 100% accurate in picking up a cancer, so negative pathology reports in such cases may provide false reassurance. The photo was taken with a Minolta X-370 with 100mm bellows lens on Kodak Elite ISO 100 film. The specimen was previously fixed overnight in formalin after being pinned out in a wax-bottomed tray. Photograph by Ed Uthman, MD. Public domain. Posted 23 Sep 00 |
|---|---|
| Source | |
| Date | |
| Author | |
| Permission |
PD |
[edit] Licensing
 |
This file has been (or is hereby) released into the public domain by its author, Ed Uthman. This applies worldwide.
In case this is not legally possible: العربية | Česky | Dansk | Deutsch | Ελληνικά | English | Español | فارسی | Français | Italiano | 日本語 | Nederlands | Polski | Português | Русский | Svenska | Türkçe | 简体中文 | 正體中文 | +/- |
图像链接
以下页面链接到本图像：
