The Sigmoid Elevator Sign: Its Significance
| Autor: | Rubin S, Rodger W. Lambie, Edwin M. Herman, Kendrick C. Davidson |
|---|---|
| Rok vydání: | 1969 |
| Předmět: |
medicine.medical_specialty
medicine.diagnostic_test business.industry Sigmoid colon Rectum Sigmoid function Occult digestive system diseases Descending colon Surgery Sigmoid Neoplasms Ileocecal valve medicine.anatomical_structure Colon Sigmoid Fluoroscopy Colonic Neoplasms Methods medicine Humans Radiology Nuclear Medicine and imaging business Barium enema |
| Zdroj: | Radiology. 93:867-870 |
| ISSN: | 1527-1315 0033-8419 |
| DOI: | 10.1148/93.4.867 |
| Popis: | Occult lesions of the colon continue to challenge the radiologist regardless of the many specialized technics that have been advocated for exploring the rectum and the sigmoid (1–5). The difficulty inherent in detecting carcinoma of the large bowel is often compounded when the sigmoid and descending colon are markedly elongated and redundant, thus obscuring segments of the bowel. Through the years we have noted a phenomenon that has recurred frequently enough to justify its description and warrant its reporting. This observation, when present, may alert the examiner to the possibility of a distal colonic or pericolonic lesion. For want of a better term, we have labeled our finding “the sigmoid elevator sign.” Discussion To understand the mechanism responsible for this finding, it is necessary to recall certain basic principles pertaining to the barium enema examination. The normal colon, with a competent ileocecal valve, functions as a closed pressure system. The pressure manifested during the barium flow... |
| Databáze: | OpenAIRE |
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