title: Recurrent polymorphous low-grade adenocarcinoma manifesting as a sinonasal mass: a case report.
abstract: Polymorphous low-grade adenocarcinoma (PLGA) is a malignant neoplasm that tends to follow a benign clinical course. Recurrences are uncommon. We report a case of recurrent PLGA of the paranasal sinuses that manifested as a large mass that filled the entire nasal cavity and left maxillary sinus. To our knowledge, this is the first reported case of a recurrent PLGA of the paranasal sinuses.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Thomas Jefferson University, 925 Chestnut St., Philadelphia, PA 19107, USA. dcharous@yahoo.com
authors.forename: Daniel D
authors.initials: DD
authors.lastname: Charous
authors.forename: Mary F
authors.initials: MF
authors.lastname: Cunnane
authors.forename: Marc R
authors.initials: MR
authors.lastname: Rosen
authors.forename: William M
authors.initials: WM
authors.lastname: Keane
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D010255:Paranasal Sinus Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D010256:Paranasal Sinuses / Q000503:physiopathology*; D012008:Recurrence; D012468:Salivary Gland Neoplasms / Q000175:diagnosis / Q000473:pathology