PMC6854984_01
Endoscopic appearance of N-acetylcysteine pill-induced esophagitis.
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fig1
The distance between the foci and the incisors was approximately 24 cm (Figure 1).
Endoscopic appearance, with healed ulcers, 20 days later.
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fig2
After the course of treatment, the symptoms subsided, and a follow-up endoscopy after 20 days showed that the ulcers have healed (Figure 2).