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Research Letters |

Giant Intrascleral Cyst Treated With Trichloroacetic Acid FREE

Emily B. Graubart, MD; G. Baker Hubbard III, MD
Arch Ophthalmol. 2008;126(3):438-439. doi:10.1001/archopht.126.3.438.
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Published online

Intrascleral cysts are a rare complication of strabismus surgery. Treatment of these lesions has previously been described to include excision as well as drainage followed by injection of tetracycline hydrochloride.1 The use of trichloroacetic acid (TCA) has been described in the treatment of many lesions, including conjunctival and corneoscleral cysts.2,3 Here we describe the use of TCA in the treatment of a giant intrascleral cyst.

A 23-year-old man was referred with a diagnosis of retinal detachment in his left eye. The patient had gradual decreased vision, discomfort, and enlargement of his left eye during the past 12 months. His ocular history included strabismus surgery on both eyes at age 10 years and on the left eye at age 21 years. He was noted to have strabismic amblyopia of the left eye.

On examination, his visual acuity was 20/20 OD and 20/100 OS. External examination of the left eye revealed proptosis and lagophthalmos. Slitlamp examination showed a large bluish scleral bulge superonasally (Figure 1A) and significant surface keratopathy. On fundus examination, areas of dome-shaped retinal and choroidal elevation were noted superiorly and nasally (Figure 1B). An ultrasonographic examination of the left eye demonstrated a large echolucent area 25.4 × 18.9 × 11.9 mm within the sclera, consistent with an intrascleral cyst. The retina and choroid were attached (Figure 2). A computed tomographic scan was obtained, which showed an intrascleral cyst with no communication between the cyst and the central nervous system.

Place holder to copy figure label and caption
Figure 1.

A slitlamp photograph of the left eye demonstrating a bluish-tinged cystic mass superiorly and nasally (A) and a fundus photograph showing elevation of the retina and choroid nasally (B).

Graphic Jump Location
Place holder to copy figure label and caption
Figure 2.

A transverse B-scan image at the 12-o’clock position revealing a multilobular echolucent lesion of the left eye (A) and a transverse B-scan image at 9-o’clock position confirming the intrascleral location of the lesion, with the retina and choroid attached (B).

Graphic Jump Location

The patient underwent surgical drainage of the cyst using a 22-gauge Angiocath (Becton, Dickinson, and Co, Franklin Lakes, New Jersey). Approximately 1 mL of material was aspirated and sent for pathological examination. A glass syringe filled with 0.5 mL of 20% TCA was attached to the Angiocath. The remainder of the cyst fluid was aspirated into the glass syringe and mixed with the TCA. This mixture was then reinjected into the cyst approximately 5 times to adequately lavage the cystic cavity. Finally, the empty cystic space was irrigated copiously with BSS Plus (Alcon Laboratories, Inc, Forth Worth, Texas). Indirect ophthalmoscopy confirmed that the posterior aspect of the cyst was completely drained. Microscopical examination of the cyst aspirate showed scattered debris and fragments of keratin.

The patient has been followed up in our clinic for more than 2 years without recurrence of the cyst. His visual acuity improved to 20/30 OS, and his proptosis and surface keratopathy resolved.

Intrascleral cysts are uncommon epithelial inclusion cysts noted to occur following strabismus surgery.1 They may form as a result of conjunctival epithelial cells being pulled into scleral tunnels made by suture material at the time of muscle reinsertion.4 This cyst was unusually large—to our knowledge, scleral cysts of this size have not been reported previously.

Sclerodesis of an intrascleral cyst using tetracycline hydrochloride solution (30 mg/mL) has been previously described.1 Reports of treating the corneal portion of a corneoscleral cyst with TCA as well using TCA for the treatment of conjunctival cysts have also been published.2,3 We are unaware of any previous reports of sclerodesis using TCA for the treatment of an intrascleral cyst and could find no reference to it in a computerized search using MEDLINE.

In summary, scleral cysts after strabismus surgery can become quite large. In our patient, it caused proptosis and exposure keratopathy and simulated a retinal detachment. Drainage and sclerodesis with TCA can result in long-term resolution of giant scleral cysts.

Correspondence: Dr Graubart, Department of Ophthalmology, Emory University School of Medicine, 1365B Clifton Rd NE, Ste B2400, Atlanta, GA 30322 (e_graubart@yahoo.com).

Author Contributions: Dr Graubart had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.

Financial Disclosure: Dr Hubbard reported serving as a consultant for Genentech, Inc, and Theragenics Corp.

Funding/Support: This study was supported in part by an unrestricted grant from Research to Prevent Blindness, New York, New York.

Role of the Sponsor: Research to Prevent Blindness did not have a role in the design, collection, analysis, or interpretation of the data. They also did not have any involvement in the preparation of the manuscript.

Verbeek  AMRamirez  AACruysberg  JRDeutman  AF Recurrent intrascleral cyst after strabismus surgery. Graefes Arch Clin Exp Ophthalmol 1996;234 ((suppl 1)) S229- S231
PubMed Link to Article
Owji  NAslani  A Conjunctival cysts of the orbit after enucleation. Ophthal Plast Reconstr Surg 2005;21 (4) 264- 266
PubMed Link to Article
Rao  SKFogla  RBiswas  JPadmanabhan  P Corneoscleral cysts: evidence of developmental etiology. Cornea 1998;17 (4) 446- 450
PubMed Link to Article
Kushner  BJ Subconjunctival cysts as a complication of strabismus surgery. Arch Ophthalmol 1992;110 (9) 1243- 1245
PubMed Link to Article

Figures

Place holder to copy figure label and caption
Figure 1.

A slitlamp photograph of the left eye demonstrating a bluish-tinged cystic mass superiorly and nasally (A) and a fundus photograph showing elevation of the retina and choroid nasally (B).

Graphic Jump Location
Place holder to copy figure label and caption
Figure 2.

A transverse B-scan image at the 12-o’clock position revealing a multilobular echolucent lesion of the left eye (A) and a transverse B-scan image at 9-o’clock position confirming the intrascleral location of the lesion, with the retina and choroid attached (B).

Graphic Jump Location

Tables

References

Verbeek  AMRamirez  AACruysberg  JRDeutman  AF Recurrent intrascleral cyst after strabismus surgery. Graefes Arch Clin Exp Ophthalmol 1996;234 ((suppl 1)) S229- S231
PubMed Link to Article
Owji  NAslani  A Conjunctival cysts of the orbit after enucleation. Ophthal Plast Reconstr Surg 2005;21 (4) 264- 266
PubMed Link to Article
Rao  SKFogla  RBiswas  JPadmanabhan  P Corneoscleral cysts: evidence of developmental etiology. Cornea 1998;17 (4) 446- 450
PubMed Link to Article
Kushner  BJ Subconjunctival cysts as a complication of strabismus surgery. Arch Ophthalmol 1992;110 (9) 1243- 1245
PubMed Link to Article

Correspondence

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