Korean J Ophthalmol.  2007 Dec;21(4):251-254. 10.3341/kjo.2007.21.4.251.

Conjunctival Inclusion Cysts in Long-standing Chronic Vernal Keratoconjunctivitis

Affiliations
  • 1Department of Ophthalmology, Kyung Hee University College of Medicine, Seoul, Korea. khjinmd@khmc.or.kr
  • 2Department of Ophthalmology, Kang Won University College of Medicine, Kangwon, Korea.

Abstract

PURPOSE: To report a case of conjunctival inclusion cysts on the corneal limbus of a patient with chronic vernal keratoconjunctivitis during 16 months' follow up. METHODS: The patient was a 26 year old male without any specific history of surgery or trauma. Giant papillae, shield ulcers, and Horner-Trantas dots were detected. During the 16 month follow-up, Sodium cromoglycate eye drops and Prednisolone acetate 1% eye drops were given 3 times a day. During this period, conjunctival cysts were detected on the corneal limbus in both eyes. In spite of improvement of the corneal and conjunctival conditions, the conjunctival cysts did not seem to show any specific changes. For relief of foreign body sensation, excision of the conjunctival cysts and giant papillae of the left eye and histopathologic examination of the specimen was performed. RESULTS: On histopathological examination, the conjunctival cysts consisted of nonkeratinizing stratified epithelial cells filled with PAS-positive mucous substance. Inflammatory cells were not found in the vicinity. CONCLUSIONS: Conjunctival inclusion cysts can be seen as an atypical finding of long-standing vernal keratoconjunctivitis. Mechanical friction between the giant papillae and conjunctiva may be a factor in inducing the formation of the conjunctival cysts.

Keyword

Conjunctival inclusion cysts; Chronic vernal keratoconjunctivitis; Giant papillae; Mechanical friction

MeSH Terms

Adult
Chronic Disease
Conjunctiva/*pathology
Conjunctivitis, Allergic/*complications/pathology
Cysts/*etiology/pathology/surgery
Diagnosis, Differential
Disease Progression
Follow-Up Studies
Humans
Male
Time Factors

Figure

  • Fig. 1 Giant papillae with flat tops on the upper tarsal conjunctiva (dot-arrow), typically described as a 'cobblestone' appearance were the hallmark of vernal keratoconjunctivitis and were different in shape compared with hypertrophic conjunctival cicatrization (lined-arrow). The size of the giant papillae in the left eye was larger than that of the right eye (A: Right eye, B: Left eye).

  • Fig. 2 At 16 months after the diagnosis of vernal keratoconjunctivitis, the conjunctival cyst on the limbus, which was not identified before, was detected (lined-arrow), It appears as a raised, circumscribed, pale, transparent cystic lesion and was located on the superior limbus. The size of the cysts in the left eye was larger than that of the right eye (A: Right eye, B: Left eye).

  • Fig. 3 The gross histopathologic finding disclosed the portion of conjunctiva showing a cystic wall lined by a single layer of low cuboidal epithelium with edema and congestion measuring 0.1-0.2 ml in volume. (H & E stain, ×100)

  • Fig. 4 The histopathologic section of conjunctival cyst wall. The cyst wall is lined by nonkeratinizing stratified epithelium and connective tissue with no inflammatory cell infiltration. (H & E stain, ×200)

  • Fig. 5 The PAS-stained histopathologic finding. The cyst was filled with PAS-positive amorphous proteinous materials. (PAS stain, ×400)


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