title: A case of recurrent Schneiderian papilloma of the lacrimal sac invading the nasal cavity.
abstract: A 44-year-old man presented with a history of chronic epiphora, discharge from the right eye, and a palpable mass in the medial canthal area. Irrigation of the lacrimal system revealed bloody discharge. Orbital magnetic resonance imaging (MRI) showed a well-defined heterogeneous enhanced mass filling the lacrimal sac and upper nasolacrimal duct (NLD). A wide excision and surgical biopsy were performed. Histopathology showed the tumor to be an exophytic Schneiderian papilloma with moderate to severe dysplasia. Three months later, the mass was found to be invading the nasal cavity through the NLD. Endoscopic histopathological evaluation confirmed that it was identical to the originally identified papilloma.
authors: Department of Ophthalmology, Dongsan Medical Center, Keimyung University, Daegu, Korea.
authors: Ji Hye
authors: JH
authors: Jang
authors: Sung Dong
authors: SD
authors: Chang
authors: Mi Sun
authors: MS
authors: Choe
mesh_terms: D000328:Adult; D001706:Biopsy; D003937:Diagnosis, Differential; D004724:Endoscopy; D005134:Eye Neoplasms / Q000473:pathology* / Q000601:surgery; D005500:Follow-Up Studies; D006801:Humans; D007765:Lacrimal Apparatus / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D009297:Nasal Mucosa / Q000473:pathology*; D009361:Neoplasm Invasiveness / Q000473:pathology*; D009364:Neoplasm Recurrence, Local / Q000473:pathology* / Q000601:surgery; D009669:Nose Neoplasms / Q000473:pathology* / Q000601:surgery; D010212:Papilloma / Q000473:pathology* / Q000601:surgery