In a definition essay, you explain the meaning of a certain term by giving a detailed description of it, and support your definition with clear examples or facts. Such explanations are needed if a term is special, abstract, disputed or does not have a common meaning.
Dysphagia may be caused by traumatic injuries to the head, neck, or chest and result from accidents or iatrogenic causes. In the latter category, both planned and inadvertent injuries to cranial nerves are common. Many accident victims have involvement of multiple sites.
Some of the causes of esophageal dysphagia include: 1  Achalasia. 2  Diffuse spasm. 3  Esophageal stricture. 4  Esophageal tumors. 5  Foreign bodies. 6  Esophageal ring. 7  Gastroesophageal reflux disease (GERD). 8  Eosinophilic esophagitis. 9  Scleroderma. 10  Radiation therapy.auses of oropharyngeal dysphagia include: 1  Neurological disorders. 2  Certain disorders â such as multiple sclerosis, muscular dystrophy and Parkinson's disease â can cause dysphagia.