A<unk>   is a cyst in the eyelid that is caused by inflammation of a blocked meibomian gland, usually on the upper eyelid.<unk> s differ from styes (hordeolums) in that they are usually painless apart from the tenderness caused when they swell up. A<unk>  may eventually disappear on its own after a few months, though more often than not, some treatment is necessary.
Chalazion
Formothion
Veratrum
Ranula
Trichilemmoma
Lochia
Scombroid
Filum terminale