title: Primary epithelial neoplasms of the lacrimal sac.
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000175:diagnosis / Q000473:pathology; D000328:Adult; D000368:Aged; D002277:Carcinoma / Q000473:pathology; D002291:Carcinoma, Papillary / Q000175:diagnosis / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis / Q000473:pathology*; D002295:Carcinoma, Transitional Cell / Q000175:diagnosis / Q000473:pathology; D002648:Child; D003937:Diagnosis, Differential; D005134:Eye Neoplasms / Q000175:diagnosis / Q000473:pathology*; D005260:Female; D006801:Humans; D007765:Lacrimal Apparatus / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010212:Papilloma / Q000175:diagnosis / Q000473:pathology*; D011379:Prognosis; D012008:Recurrence