chalazion

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chalazion

 [kah-la´ze-on] (pl. chala´zia, chalazions) (Gr.)
a small eyelid mass resulting from chronic inflammation of a meibomian gland; it can sometimes be treated at home with the application of hot compresses, but while this method is usually successful with a sty, a similar infection that has not yet formed a cyst, chalazion often requires incision and drainage. Called also meibomian cyst.

cha·la·zi·on

, pl.

cha·la·zi·a

(ka-lā'zē-on, -zē-ă), Avoid the mispronunciation sha-lā'zē-ŏn.
A chronic inflammatory granuloma of a meibomian gland.
Synonym(s): chalaza (1) , meibomian cyst, tarsal cyst
[G. dim. of chalaza, a sty]

chalazion

/cha·la·zi·on/ (kah-la´ze-on) pl. chala´zia, chalazions   [Gr.] a small eyelid mass due to inflammation of a meibomian gland.

chalazion

(kə-lā′zē-ən, -ŏn′)
n. pl. chala·zia (-zē-ə)
A cyst of a tarsal gland.

chalazion

[kəlā′zion]
Etymology: Gk, hailstone
a small, nonmalignant, localized swelling of the eyelid resulting from obstruction and retained secretions of the meibomian glands. Treatment can include warm wet compresses, but the condition often requires surgery for correction. Compare hordeolum, sty.
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Chalazion

chalazion

Meibomian cyst, meibomian gland lipogranuloma, tarsal cyst Opthalmology A cyst in the eyelid caused by plugging of the meibomian gland Management Warm wet compresses; surgical drainage if unresponsive to conservative measures

cha·la·zi·on

, gen. and pl. chalazia (kă-lā'zē-on, -zē-ă)
A chronic inflammatory granuloma of a meibomian gland; sometimes related to blockage.
Synonym(s): meibomian cyst, tarsal cyst.
[G. dim. of chalaza, a sty]

chalazion

A hard, pea-like swelling in an eyelid, often becoming inflamed, and due to the retention of secretion in a MEIBOMIAN GLAND. Also known as a meibomian cyst.

Meibom,

Hendrik (Heinrich), Dutch anatomist and physician ,1638-1700.
meibomian conjunctivitis - obsolete term for a conjunctivitis associated with chronic inflammation of the meibomian glands, with swollen tarsal plates and frothy seborrheic secretion. Synonym(s): seborrheic blepharoconjunctivitis
meibomian cyst - a chronic inflammatory granuloma of a meibomian gland. Synonym(s): chalazion
meibomian glands - sebaceous glands embedded in the tarsal plate of each eyelid, discharging at the edge of the lid near the posterior border. Synonym(s): tarsal glands
meibomian sty - an acute purulent infection of a meibomian (tarsal) gland. Synonym(s): hordeolum internum

chalazion (ch·laˑ·zē·n),

n nonmalignant swelling in the eyelid area due to an obstruction of or malfunctioning meibomian gland.
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Chalazion.

chalazion 

A chronic inflammatory lipogranuloma due to retention of the secretion (such as blocked ducts) of a meibomian gland in the tarsus of an eyelid. It is characterized by a gradual painless swelling of the gland without marked inflammatory signs and sometimes astigmatism which is induced by the cyst pressing on the cornea (Fig. C5). Small chalazia may disappear spontaneously but large ones usually have to be incised and curetted (i.e. removal of the pus with a scraper) through a tarsal incision. Resolution may also occur after local injection of a corticosteroid drug (e.g. dexamethasone or triamcinolone). Syn. meibomian cyst (although it is not a true cyst because its walls are made of granulomatous tissue and not lined with epithelium). See internal hordeolum.
Fig. C5 Upper eyelid chalazionenlarge picture
Fig. C5 Upper eyelid chalazion

chalazion

a small eyelid mass resulting from chronic inflammation of a meibomian gland. Called also meibomian cyst.