Encara no tenim significats per a "lacrimal drainage".
1Aims and background: Epithelial malignant tumors of the lacrimal drainage system are rare.
2Objective: To analyze the pathological classification and age distribution of primary neoplasms of the lacrimal drainage system.
3Recurrent infection from lacrimal drainage obstruction and tear film instability are other risk factors for disease severity and progression.
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