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Case report: an unusual unilateral pterygium — a secondary pterygium caused by parasitosis in the scleral fistula

BACKGROUND: Ocular parasitosis can cause eye damage, which contribute to eye symptoms such as burning, itching and even blindness. It is uncommon to see the parasitosis lying in the sclera layer, neither it causing pterygium. Here, we present an unusual case of a secondary pterygium caused by intras...

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Autores principales: Zeng, Wenjie, Pan, Zhaoyi, Wang, Jun, Deng, Xianghui, Jiang, Wenmin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8422641/
https://www.ncbi.nlm.nih.gov/pubmed/34488674
http://dx.doi.org/10.1186/s12886-021-02083-2
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author Zeng, Wenjie
Pan, Zhaoyi
Wang, Jun
Deng, Xianghui
Jiang, Wenmin
author_facet Zeng, Wenjie
Pan, Zhaoyi
Wang, Jun
Deng, Xianghui
Jiang, Wenmin
author_sort Zeng, Wenjie
collection PubMed
description BACKGROUND: Ocular parasitosis can cause eye damage, which contribute to eye symptoms such as burning, itching and even blindness. It is uncommon to see the parasitosis lying in the sclera layer, neither it causing pterygium. Here, we present an unusual case of a secondary pterygium caused by intrascleral worm. CASE PRESENTATION: A 52-year-old women complained about discomfort in right eye for 6 years. Slit-lamp examination indicated a thickened triangular layers of conjunctiva extending from the nasal edge to the cornea. The diagnosis was pterygium in the right eye. To our surprise, after scleral of nasal side exposed, we could see a tiny fistula right in the sclera which lied right under the pterygium, with an alive and motile worm inside. An intrascleral fistula was noted. Then the worm was removed by forceps from the fistula, which was creamy white, thread-like and 1 cm long. DISCUSSION AND CONCLUSIONS: As far as we known, it is the first case of an intrascleral worm hidden beneath the conjunctiva which caused the secondary pterygium. It is hard to know the etiology of the secondary pterygium which caused by parasitosis in the scleral fistula untill excision surgery. It is hard to imagine the worm was living in the sclera of the patient for a long-time.
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spelling pubmed-84226412021-09-09 Case report: an unusual unilateral pterygium — a secondary pterygium caused by parasitosis in the scleral fistula Zeng, Wenjie Pan, Zhaoyi Wang, Jun Deng, Xianghui Jiang, Wenmin BMC Ophthalmol Case Report BACKGROUND: Ocular parasitosis can cause eye damage, which contribute to eye symptoms such as burning, itching and even blindness. It is uncommon to see the parasitosis lying in the sclera layer, neither it causing pterygium. Here, we present an unusual case of a secondary pterygium caused by intrascleral worm. CASE PRESENTATION: A 52-year-old women complained about discomfort in right eye for 6 years. Slit-lamp examination indicated a thickened triangular layers of conjunctiva extending from the nasal edge to the cornea. The diagnosis was pterygium in the right eye. To our surprise, after scleral of nasal side exposed, we could see a tiny fistula right in the sclera which lied right under the pterygium, with an alive and motile worm inside. An intrascleral fistula was noted. Then the worm was removed by forceps from the fistula, which was creamy white, thread-like and 1 cm long. DISCUSSION AND CONCLUSIONS: As far as we known, it is the first case of an intrascleral worm hidden beneath the conjunctiva which caused the secondary pterygium. It is hard to know the etiology of the secondary pterygium which caused by parasitosis in the scleral fistula untill excision surgery. It is hard to imagine the worm was living in the sclera of the patient for a long-time. BioMed Central 2021-09-06 /pmc/articles/PMC8422641/ /pubmed/34488674 http://dx.doi.org/10.1186/s12886-021-02083-2 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Case Report
Zeng, Wenjie
Pan, Zhaoyi
Wang, Jun
Deng, Xianghui
Jiang, Wenmin
Case report: an unusual unilateral pterygium — a secondary pterygium caused by parasitosis in the scleral fistula
title Case report: an unusual unilateral pterygium — a secondary pterygium caused by parasitosis in the scleral fistula
title_full Case report: an unusual unilateral pterygium — a secondary pterygium caused by parasitosis in the scleral fistula
title_fullStr Case report: an unusual unilateral pterygium — a secondary pterygium caused by parasitosis in the scleral fistula
title_full_unstemmed Case report: an unusual unilateral pterygium — a secondary pterygium caused by parasitosis in the scleral fistula
title_short Case report: an unusual unilateral pterygium — a secondary pterygium caused by parasitosis in the scleral fistula
title_sort case report: an unusual unilateral pterygium — a secondary pterygium caused by parasitosis in the scleral fistula
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8422641/
https://www.ncbi.nlm.nih.gov/pubmed/34488674
http://dx.doi.org/10.1186/s12886-021-02083-2
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