منابع مشابه
Achalasia.
Achalasia is the best understood and most readily treatable esophageal motility disorder. It serves as a prototype for disorders of the enteric nervous system with degeneration of the myenteric neurons that innervate the lower esophageal sphincter (LES) and esophageal body. Investigations into the pathogenesis have highlighted the importance of nitric oxide and the possible role of an autoimmun...
متن کاملAchalasia
Achalasia is a primary esophageal motor disorder characterized by lack of esophageal peristalsis and poor lower esophageal sphincter (LES) relaxation. Clinically, achalasia manifests as progressive dysphagia to solids and liquids and mild weight loss. Predisposition to esophageal cancer is not prevalent, but certain tumors may mimic achalasia. The diagnosis of achalasia is relatively easy to ma...
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Mediastinal masses can be benign cysts, neurogenic tumors, germ cell neoplasms, thymomas or lymphomas. The mediastinum is demarcated by the pleural cavities laterally. Superior to the mediastinum, you find the thoracic inlet. The mediastinum is usually divided into three main compartments, anterior, middle and posterior. This anatomical classification of the mediastinum is useful for the radiol...
متن کاملImaging of the Mediastinum
Mediastinal masses can be benign cysts, neurogenic tumors, germ cell neoplasms, thymomas or lymphomas. The mediastinum is demarcated by the pleural cavities laterally. Superior to the mediastinum, you find the thoracic inlet. The mediastinum is usually divided into three main compartments, anterior, middle and posterior. This anatomical classification of the mediastinum is useful for the radiol...
متن کاملGeneralized Widening
We present a new threat based search algorithm that outperforms other threat based search algorithms and selective knowledge-based for open life and death problem solving in the game of Go. It generalizes the Iterative Widening algorithm which consists in iteratively increasing the threat searched at the root. The main idea of Generalized Widening is to perform Iterative Widening at all max nod...
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ژورنال
عنوان ژورنال: Emergency Medicine: Open Access
سال: 2015
ISSN: 2165-7548
DOI: 10.4172/2165-7548.1000i107