Inflammatory
GERD
Allergy (eosinophilic)
Infectious Mainly seen in patients w/ immunosuppression (HIV/AIDS, cancer, steroids)
Esophageal candidiasis: often an AIDS defining lesion
HSV,<unk> , aphthous ulceration
Pill<unk> , common culprits:
Doxycycline
Tetracycline
Clindamycin
NSAIDs
ASA
Bisphosphonates
Ferrous sulfate
Potassium chloride
Ascorbic acid
GERD
Allergy (eosinophilic)
Esophageal candidiasis: often an AIDS defining lesion
HSV,<unk> , aphthous ulceration
Doxycycline
Tetracycline
Clindamycin
NSAIDs
ASA
Bisphosphonates
Ferrous sulfate
Potassium chloride
Ascorbic acid<unk> <unk>  colitis<unk>  pneumonia<unk>  retinitis<unk>  neurologic disease
CMV esophagitis
Inflammatory
Esophageal candidiasis
GERD
Zenker's diverticulum
Allergy 
Ludwig's angina
Infectious Mainly seen in patients w/ immunosuppression 