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Pathological investigation of a case with rapidly-growing corneal keloid Kimitaka Oda 1 , Yuichi Kaji 1 , Yumi Hasegawa 1 , Tetsuro Oshika 1 1Department of Ophthalmology, University of Tsukuba pp.565-571
Published Date 2018/4/15
DOI https://doi.org/10.11477/mf.1410212663

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Abstract Purpose:Corneal keloid is a rare disorder presenting slowly-growing nodular lesion at the central part of the cornea. We present a case with a rapidly-growing corneal keloid and conducted pathological examinations to reveal the mechanism of the disease.

Case:A 10-year-old male was referred to us due to corneal opacity and decrease vision in the right eye. Slightly-elevated nodular lesion with vascularization was observed at the central part of the cornea of the right eye. Subepithelial corneal opacity with pannus was also present in the left eye. Before making a final diagnosis, the patient ceased to visit our hospital. Eight years later, the patient was referred to us because the volume of the corneal lesion rapidly increased. We performed lamellar corneal excision for cosmetic purpose and for making diagnosis. Histologically, fibrovascular proliferation with localized precipitation of extravascular fibrin was observed. Immunohistochemically, fibroblasts were positive for vimentin and α-smooth muscle actin, suggesting that the fibroblasts were activated.

Conclusion:Corneal keloid is a cause of rapidly-growing corneal lesions. Increased permeability of vessels as well as fibrovascular proliferation were involved in the rapid growth of the corneal keloid.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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