@article {1603868,
	title = {Lymphoma of the Lacrimal Sac: The Massachusetts Eye and Ear Experience With a Comparison to the Previously Reported Literature},
	journal = {Ophthalmic Plast Reconstr Surg},
	volume = {38},
	number = {1},
	year = {2022},
	month = {2022 Jan-Feb 01},
	pages = {79-86},
	abstract = {PURPOSE: To describe the frequency, clinical features, and histologic subtypes of biopsy proven lacrimal sac lymphomas, and to compare these results to the previously published literature. METHODS: A retrospective chart review was performed at a single institution from 2004 to 2017. Pathology reports, operative notes, and patients{\textquoteright} medical charts were reviewed. RESULTS: Of 566 lacrimal sacs submitted for routine histopathologic evaluation, 16 cases of lymphoma were identified. All were low-grade, non-Hodgkin B-cell lymphomas, biopsied at an average age of 71 years. Thirteen patients (81.25\%) had a pre-existing lymphoma diagnosis; the average interval between the diagnosis of systemic or nonocular adnexal lymphoma and lacrimal sac lymphoma was 7.9 years (range 2-26 years; median 5.5 years). Three cases of primary lacrimal sac lymphoma were identified. Histopathology showed 3 cases (18.75\%) of follicular lymphoma, 3 (18.75\%) of extranodal marginal zone lymphoma, and 10 (62.5\%) of chronic lymphocytic leukemia/small lymphocytic lymphoma. Primary cases presented with epiphora and nasolacrimal duct obstruction, while secondary cases predominantly manifested as dacryocystitis. All lacrimal sac neoplasms were locally responsive (without local recurrence) to chemotherapy, radiation, or both. CONCLUSIONS: Lacrimal sac lymphoma is uncommon but should be suspected among patients with known lymphoma who develop dacryocystitis. In this series, primary lacrimal sac lymphoma most often presented as a mass or nasolacrimal duct obstruction. Chronic lymphocytic leukemia/small lymphocytic lymphoma was the most commonly identified cause of secondary lacrimal sac lymphoma. Distinguishing primary from secondary lacrimal sac lymphomas is important, as the extent of disease and histopathologic subtypes differ, which may affect patient management.},
	keywords = {Aged, Dacryocystitis, Dacryocystorhinostomy, Humans, Lacrimal Apparatus Diseases, Lacrimal Duct Obstruction, Lymphoma, B-Cell, Marginal Zone, Nasolacrimal Duct, Retrospective Studies},
	issn = {1537-2677},
	doi = {10.1097/IOP.0000000000001997},
	author = {Neerukonda, Vamsee K and Stagner, Anna M and Wolkow, Natalie}
}
