NCLEX RN Paractice Question # 846

NCLEX Examination.

Practice Question # 846.

 

nclex examination

 

Esophageal cancer is usually of the squamous cell epidermoid type; however, the incidence of adenocarcinoma of the esophagus is increasing in the United States. Tumor cells may spread beneath the esophageal mucosa or directly into, through, and beyond the muscle layers into the lymphatics.

In the latter stages, obstruction of the esophagus is noted, with possible perforation into the mediastinum and erosion into the great vessels.

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