Corrosive Esophagitis Caused by ingestion of strongly acidic or basic chemical Lye, HCl Results in esophageal perforation esophageal stricture formation Infectious Esophagitis Commonly seen in AIDS patients May be viral or fungal HSV-1 mutiple punched-out ulcers throughout esophagus with normal mucousa ulcers can coalese and form "black esophagus" histology will show eosinophilic intranuclear inclusions (Cowdry type A) and multinucleated squamous cells surrounding the ulcers on biopsy CMV single, large, shallow, linear ulcer Candida Odynophagia is main symptom