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Dacryocystectomy
Dacryocystectomy comes from the Greek word "dakryon" meaning "tear," the Greek word "kystis" meaning "sac," and the Greek word "ektome" meaning "excision." Put the three words together and you get "tear sac excision."
Partial or total removal of the lacrimal sac or lacrimal sacs through surgery. Lacrimal sacs are hollow spaces that the lacrimal canals drain tears into. The lacrimal canals are curved, tube shaped structures that drain tears from the eyes and carry them to the lacrimal sacs. To read more about the lacrimal sacs, see the entry for the lacrimal apparatus, which is the system in the body that produces and drains tears.
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