title: Sinusitis or malignancy?
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D009362:Neoplasm Metastasis; D009669:Nose Neoplasms / Q000175:diagnosis*; D010212:Papilloma / Q000175:diagnosis; D010255:Paranasal Sinus Neoplasms / Q000175:diagnosis*; D012852:Sinusitis / Q000175:diagnosis*