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Abstract：
OBJECTIVE: To report a case of iris implantation cysts occurring 24 years after penetrating keratoplasty and its management.
METHODS: A 60-year-old man was referred for diagnosis and management of white iris masses of the right eye. He had undergone bilateral penetrating keratoplasty 24 years before without complication. The clinical findings were suggestive of iris implantation cysts and Ultrasound Biomicroscopy (UBM) and anterior-segment optical coherence tomography confirmed the diagnosis. The patient did not develop any ocular complications from the cysts after one-year follow-up from the diagnosis of iris implantation cysts.
CONCLUSIONS: Iris implantation cysts are rare benign tumors that develop after the ectopic implantation of epithelial cells within the iris stroma. They can be congenital or secondary to penetrating trauma or surgery. Their diagnosis relies on clinical examination and UBM. In case of intraocular complications, treatment may be required, otherwise observational follow-up is appropriate.
METHODS: A 60-year-old man was referred for diagnosis and management of white iris masses of the right eye. He had undergone bilateral penetrating keratoplasty 24 years before without complication. The clinical findings were suggestive of iris implantation cysts and Ultrasound Biomicroscopy (UBM) and anterior-segment optical coherence tomography confirmed the diagnosis. The patient did not develop any ocular complications from the cysts after one-year follow-up from the diagnosis of iris implantation cysts.
CONCLUSIONS: Iris implantation cysts are rare benign tumors that develop after the ectopic implantation of epithelial cells within the iris stroma. They can be congenital or secondary to penetrating trauma or surgery. Their diagnosis relies on clinical examination and UBM. In case of intraocular complications, treatment may be required, otherwise observational follow-up is appropriate.
摘要：
目的：报道一例穿透性角膜移植术后24年发生虹膜植入性囊肿的病例及其处理。
方法：一名60岁男性因右眼白色虹膜肿块的诊断和治疗而转诊。24年前，他接受了双侧穿透性角膜移植术，没有并发症。临床表现为虹膜植入性囊肿，超声生物显微镜（UBM）和眼前节光学相干断层扫描证实了诊断。在诊断为虹膜植入囊肿一年的随访后，患者未出现囊肿引起的任何眼部并发症。
结论：虹膜着床囊肿是罕见的良性肿瘤，在虹膜基质内异位植入上皮细胞后发展。它们可以是先天性的或继发于穿透性创伤或手术。他们的诊断依赖于临床检查和UBM。在眼内并发症的情况下，可能需要治疗，否则观察性随访是合适的。
方法：一名60岁男性因右眼白色虹膜肿块的诊断和治疗而转诊。24年前，他接受了双侧穿透性角膜移植术，没有并发症。临床表现为虹膜植入性囊肿，超声生物显微镜（UBM）和眼前节光学相干断层扫描证实了诊断。在诊断为虹膜植入囊肿一年的随访后，患者未出现囊肿引起的任何眼部并发症。
结论：虹膜着床囊肿是罕见的良性肿瘤，在虹膜基质内异位植入上皮细胞后发展。它们可以是先天性的或继发于穿透性创伤或手术。他们的诊断依赖于临床检查和UBM。在眼内并发症的情况下，可能需要治疗，否则观察性随访是合适的。
