Rev Pneumol Clin
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Mucoepidermoid cancer is exceptional in the respiratory tract, accounting for only 0.2% of primary lung cancers. ⋯ The prognosis of mucoepidermoid tumors of the bronchi is closely related to tumor grade and extension at diagnosis. Unlike high-grade mucoepidermoid carcinoma, the progression of low-grade tumors, which predominate in children, is generally slow, enabling good prognosis if diagnosis is established early. Early search for these tumors in patients presenting chronic or recurrent respiratory manifestations would avoid late diagnosis and improve prognosis.