A case of crizotinib-induced esophageal ulcers.

We report a case of crizotinib-induced esophageal ulcers in a 45-year-old woman with metastatic anaplastic lymphoma kinase-positive non-small-cell lung cancer after 10 weeks of therapy. Endoscopic and pathologic findings were consistent with active inflammation with mid-esophageal ulceration and consistent with drug-induced esophagitis. Crizotinib was held and had a complete clinical and radiographic resolution of her symptoms. Patient was started on treatment with another anaplastic lymphoma kinase-targeted agent alectinib and has been tolerating it well without evidence of recurrence of esophagitis.