title: Pathologic quiz case 1. Necrotizing sialometaplasia obscuring recurrent well-differentiated squamous cell carcinoma of the maxillary sinus.
authors.forename: A
authors.initials: A
authors.lastname: Franchi
authors.forename: O
authors.initials: O
authors.lastname: Gallo
authors.forename: M
authors.initials: M
authors.lastname: Santucci
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008444:Maxillary Sinus Neoplasms / Q000473:pathology* / Q000601:surgery; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000473:pathology* / Q000601:surgery; D012086:Reoperation; D012797:Sialometaplasia, Necrotizing / Q000473:pathology* / Q000601:surgery