Q: Given an abstract, generate a keyword (a noun phrase) that best describes the focus or contribution of the paper. Such keywords can be directly from the given abstract or outside it.
Abstract: Cyst formation can occur in any location where lacrimal gland tissue is present. A new classification is proposed based on these locations: palpebral lobe cysts (simple dacryops); orbital lobe cysts; cysts of the accessory lacrimal glands of Krause and Wolfring; and cysts of ectopic (choristomatous) lacrimal glands. The characteristic clinical presentation, histopathology, and treatment of these lacrimal ductal cysts is described.
A:
Aged