A 50-year-old woman presented with a painless ulcer on her palate and a swollen upper lip. She had an associated history of intermittent fevers and malaise. She described nasal obstruction with purulent discharge for the last 3 years, for which she received treatment with intranasal glucocorticoids and antibiotics.
What is the diagnosis?
A) Mycobacterium ulcerans infection
B) Glucocorticoid induced ulceration
C) Extranodal natural killer T-cell lymphoma
D) Plasmacytoid dendritic cell neoplasm
E) Necrotizing sialometaplasia
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