chalazion

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Related to chalazia: blepharitis, Meibomian cyst, stye

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

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

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 

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
References in periodicals archive ?
Many researchers contributed to the field of establishing corticosteroids as an effective therapy for chalazia. According to the study results of Kaimbo and Nkidiaca, the intralesional steroid use in chalazia of 25 patients had a success rate of 72%, which is slightly lower than our study results6.
Biopsy was not performed in any of the patients as all the chalazia were non recurrent.
Extralesional subcutaneous triamcinolone is an effective and safe alternative to intralesional triamcinolone injection in the management of non-infected chalazia.
Intralesional corticosteroid therapy of chalazia. Am J Ophthalmol.
Treatment of chalazia with corticosteroid injections.
All the lesions were injected in the same sitting in case of multiple and bilateral chalazia. After the injection antibiotic ointment was instilled.
RESULTS: Of the 30 patients, who underwent intralesional triamcinolone injection, 13 patients had multiple chalazia and 2 had bilateral chalazia.
Chalazia are composed of chronic inflammatory cells, viz histiocytes, multinucleated giant cells, lymphocytes, plasma cells, a few polymorphonuclear leucocytes and eosinophils.
Mohan K8 achieved 92.3% success in treating chalazia with Triamcinolone; 75% success rate was reported by Prasad (9).
Cytopathology of chalazia. Diagn Cytopathol 2004; 31:118.
A prospective randomized treatment study comparing three treatment options for chalazia. Clin Experiment Ophthalmol 2007; 35:706-12.
The recurrence of 'chalazia' at the same site of previous surgery must also raise the suspicion of a tumour.