label: nasal cavity and paranasal sinus lethal midline granuloma
label_lc: nasal cavity and paranasal sinus lethal midline granuloma
description: An aggressive, progressive, and destructive lesion affecting the nasal cavities, paranasal sinuses, and the palate. The vast majority of cases are malignant lymphoproliferations affecting the midline of the face in patients with nasal type extranodal NK/T-cell lymphoma.