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Purpose@#The purpose of this study was to compare the efficacy of intralesional triamcinolone acetonide injection in the treatment of chalazion according to age and size of the lesion. @*Methods@#We performed a retrospective chart review of 108 patients (108 lesions) who underwent intralesional triamcinolone acetonide injections between January 2017 and February 2018. Patients were divided into three groups according to their age and size of the lesion and evaluated with respect to the treatment success and complications. @*Results@#Cumulative treatment success of intralesional triamcinolone acetonide injection was 69.4% with the first injection and 80.6% with the second injection in 108 lesions. With respect to age, 30 lesions were observed in patients under the age of 7 years, 22 lesions were found in patients aged 7 to 16 years, and 56 lesions were observed in patients who were 17 years or older; cumulative treatment success percentages with second injections were 86.7%, 81.8%, and 76.8% respectively. Twenty-seven lesions were under 10 mm in size, 70 lesions ranged from 10 to 15 mm, and 11 lesions were sized 16 to 20 mm; cumulative treatment success percentages were 85.2%, 80%, and 72.7% respectively. Although the results were not statistically significant. @*Conclusions@#Intralesional triamcinolone acetonide injection in chalazion is more effective for smaller lesions and younger pediatric patients.
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Purpose@#To report a rare case of lower eyelid desmoplastic trichoepithelioma.Case summary: A 56-year-old woman presented to our clinic with a slow-growing, painless, recurrent mass located in the temporal area of the left lower eyelid margin. Surgical incision had been performed on a similar mass 4 years before. On examination, a 7 × 2-mm firm, nodular, nontender mass was palpable in the left lower eyelid. The lesion was isolated from the surrounding tissues and completely excised. Histopathologically, the excised mass showed small strands of basaloid cells, keratinous cysts, and focal calcification. These findings supported a diagnosis of eyelid desmoplastic trichoepithelioma. @*Conclusions@#Because of its rarity and solitary features, eyelid desmoplastic trichoepithelioma can be confused with sclerosing basal cell carcinoma. Thus, the goal of surgical therapy should be complete excision; histopathological analysis should be also performed.
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PURPOSE: To present differences in visual acuity and macular structure before and after surgery in patients with idiopathic epiretinal membrane (ERM) according to the presence of retinoschisis. METHODS: This retrospective observational study included 324 eyes with idiopathic ERM, that underwent pars plana vitrectomy with ERM and internal limiting membrane peeling, and were followed for more than 6 months. Subjects were classified into two groups according to the presence of retinoschisis using preoperative optical coherence tomography (OCT; group 1, ERM with retinoschisis; group 2, ERM without retinoschisis). Preoperative and postoperative macular structure changes and surgical outcomes were compared. RESULTS: Group 1 included 61 eyes, and group 2 included 263 eyes. Group 1 had a significantly higher preoperative and final postoperative best-corrected visual acuity compared with group 2 (p = 0.01, p = 0.02). Preoperative disorganization of retinal inner layers (DRIL) was significantly less in group 1 than group 2 (p = 0.01). Preoperative central macular thickness was not significantly different between the two groups. However, postoperative central macular thickness was significantly lower in group 1 than group 2 (p = 0.02, p = 0.01, p < 0.01). The ratio of the inner or outer layer in the total retinal thickness before surgery was significantly smaller in group 1 than in group 2 (p = 0.02, p = 0.04). CONCLUSIONS: Preoperative visual acuity was better and the occurrence of DRIL was less in idiopathic ERM with retinoschisis than without retinoschisis. Postoperative visual and structural outcome was better in idiopathic ERM with retinoschisis than without retinoschisis. Retinoschisis may have played a role in reducing the tractional force given to the inner and outer retina.