Lacrimal sac masses are very uncommon and more commonly have a malignant (~80%) rather than benign (~20%) etiology.
Pathology
Etiology
- inflammatory
-
neoplastic
- epithelial tumors
- benign, e.g. papilloma
- malignant, e.g. squamous cell carcinoma, transitional cell carcinoma, adenocarcinoma
- mesenchymal tumor, e.g. fibroma
- lymphoma
- malignant melanoma
- epithelial tumors
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