1.Therapeutic Effects of Intravitreal Methotrexate Injection for Intraocular Lymphoma Diagnosed Using Immunocytochemical Staining
Yong Jin NA ; Kun Young KWON ; Kook Young KIM ; Young Suk CHANG ; Jung Tae KIM
Journal of the Korean Ophthalmological Society 2025;66(2):101-113
Purpose:
This study evaluated the therapeutic efficacy of intravitreal methotrexate (MTX) injections in patients diagnosed with intraocular lymphoma via vitrectomy and immunocytochemical staining.
Methods:
In a retrospective analysis of medical records, we reviewed data from four patients (six eyes) diagnosed with intraocular lymphoma cytologically after undergoing vitrectomy at our hospital between December 2021 and December 2023. Each case was followed for a minimum of 6 months after treatment, with comparisons made between pre- and post-treatment observations
Results:
The mean age of the patients was 63.5 ± 9.8 years, with an average interval of 29.3 ± 32.0 months from initial symptom onset to intraocular lymphoma diagnosis. Diagnosis was confirmed through cytological and immunocytochemical analysis of vitreous specimens, identifying diffuse large B-cell lymphoma in four eyes and atypical lymphoid cells in two eyes. On average, 14.0 ± 1.7 intravitreal MTX injections were administered per eye. The mean best-corrected visual acuity improved from 1.18 ± 0.90 pre-treatment to 0.37 ± 0.70 post-treatment. Ophthalmic complications included toxic keratopathy in three eyes and retinal hemorrhage in one eye. Additionally, nasal cavity lymphoma was diagnosed in two patients.
Conclusions
Diagnostic vitrectomy combined with cytology and immunocytochemical staining is essential for the early diagnosis of intraocular lymphoma and differentiation from inflammatory diseases, such as uveitis. Intravitreal MTX injections can induce clinical remission in intraocular lymphoma cases.
3.Therapeutic Effects of Intravitreal Methotrexate Injection for Intraocular Lymphoma Diagnosed Using Immunocytochemical Staining
Yong Jin NA ; Kun Young KWON ; Kook Young KIM ; Young Suk CHANG ; Jung Tae KIM
Journal of the Korean Ophthalmological Society 2025;66(2):101-113
Purpose:
This study evaluated the therapeutic efficacy of intravitreal methotrexate (MTX) injections in patients diagnosed with intraocular lymphoma via vitrectomy and immunocytochemical staining.
Methods:
In a retrospective analysis of medical records, we reviewed data from four patients (six eyes) diagnosed with intraocular lymphoma cytologically after undergoing vitrectomy at our hospital between December 2021 and December 2023. Each case was followed for a minimum of 6 months after treatment, with comparisons made between pre- and post-treatment observations
Results:
The mean age of the patients was 63.5 ± 9.8 years, with an average interval of 29.3 ± 32.0 months from initial symptom onset to intraocular lymphoma diagnosis. Diagnosis was confirmed through cytological and immunocytochemical analysis of vitreous specimens, identifying diffuse large B-cell lymphoma in four eyes and atypical lymphoid cells in two eyes. On average, 14.0 ± 1.7 intravitreal MTX injections were administered per eye. The mean best-corrected visual acuity improved from 1.18 ± 0.90 pre-treatment to 0.37 ± 0.70 post-treatment. Ophthalmic complications included toxic keratopathy in three eyes and retinal hemorrhage in one eye. Additionally, nasal cavity lymphoma was diagnosed in two patients.
Conclusions
Diagnostic vitrectomy combined with cytology and immunocytochemical staining is essential for the early diagnosis of intraocular lymphoma and differentiation from inflammatory diseases, such as uveitis. Intravitreal MTX injections can induce clinical remission in intraocular lymphoma cases.
5.Therapeutic Effects of Intravitreal Methotrexate Injection for Intraocular Lymphoma Diagnosed Using Immunocytochemical Staining
Yong Jin NA ; Kun Young KWON ; Kook Young KIM ; Young Suk CHANG ; Jung Tae KIM
Journal of the Korean Ophthalmological Society 2025;66(2):101-113
Purpose:
This study evaluated the therapeutic efficacy of intravitreal methotrexate (MTX) injections in patients diagnosed with intraocular lymphoma via vitrectomy and immunocytochemical staining.
Methods:
In a retrospective analysis of medical records, we reviewed data from four patients (six eyes) diagnosed with intraocular lymphoma cytologically after undergoing vitrectomy at our hospital between December 2021 and December 2023. Each case was followed for a minimum of 6 months after treatment, with comparisons made between pre- and post-treatment observations
Results:
The mean age of the patients was 63.5 ± 9.8 years, with an average interval of 29.3 ± 32.0 months from initial symptom onset to intraocular lymphoma diagnosis. Diagnosis was confirmed through cytological and immunocytochemical analysis of vitreous specimens, identifying diffuse large B-cell lymphoma in four eyes and atypical lymphoid cells in two eyes. On average, 14.0 ± 1.7 intravitreal MTX injections were administered per eye. The mean best-corrected visual acuity improved from 1.18 ± 0.90 pre-treatment to 0.37 ± 0.70 post-treatment. Ophthalmic complications included toxic keratopathy in three eyes and retinal hemorrhage in one eye. Additionally, nasal cavity lymphoma was diagnosed in two patients.
Conclusions
Diagnostic vitrectomy combined with cytology and immunocytochemical staining is essential for the early diagnosis of intraocular lymphoma and differentiation from inflammatory diseases, such as uveitis. Intravitreal MTX injections can induce clinical remission in intraocular lymphoma cases.
7.The association between transferrin saturation and all-cause mortality in chronic kidney disease: findings from Korean Cohort Study for Outcome in Patients with Chronic Kidney Disease
Eunmi JO ; Hyo Jin KIM ; Jayoun KIM ; Tae-Hyun YOO ; Yaeni KIM ; Soo Wan KIM ; Kook-Hwan OH ; Eun Young SEONG ; Sang Heon SONG
Kidney Research and Clinical Practice 2024;43(6):785-796
Transferrin saturation (TSAT) has been used as an indicator of iron deficiency. However, there is no consensus regarding its optimal range for patient with chronic kidney disease (CKD). We aimed to analyze the effect of TSAT on the prognosis of patients with non-dialysis CKD (NDCKD). Methods: From 2011 to 2016, 2157 NDCKD patients with baseline TSAT measurements were followed for 10 years. Patients were divided into three groups based on baseline TSAT values: <25%, ≥25% and <45%, and ≥45%. All-cause mortality and 4-point major adverse cardiovascular events (MACE) were analyzed using multivariable Cox regression analysis. Other iron biomarkers and mortality were also analyzed. Results: During a mean follow-up of 7.1 ± 2.9 years, 182 of a total of 2,157 patients (8.4%) died. Compared with the TSAT ≥25% and <45% group, the TSAT <25% group showed significantly increased all-cause mortality (hazard ratio [HR], 1.44; 95% confidence interval (CI), 1.02–2.03; p = 0.04). The occurrence of 4-point MACE was significantly increased in univariable analysis in the TSAT <25% group (HR, 1.48; 95% CI, 1.02–2.15; p = 0.04), but it was not significant in the multivariable analysis (HR, 1.38; 95% CI, 0.89–2.15; p = 0.15). Tertile comparisons of the iron-to-log-ferritin ratio showed increased mortality in the first tertile group. Conclusion: TSAT <25% is an independent risk factor for all-cause mortality in patients with NDCKD and care should be taken to prevent TSAT values of <25%. Other indicators, such as serum iron and iron-to-log-ferritin ratio, may also be used to assess iron deficiency.
8.The association between transferrin saturation and all-cause mortality in chronic kidney disease: findings from Korean Cohort Study for Outcome in Patients with Chronic Kidney Disease
Eunmi JO ; Hyo Jin KIM ; Jayoun KIM ; Tae-Hyun YOO ; Yaeni KIM ; Soo Wan KIM ; Kook-Hwan OH ; Eun Young SEONG ; Sang Heon SONG
Kidney Research and Clinical Practice 2024;43(6):785-796
Transferrin saturation (TSAT) has been used as an indicator of iron deficiency. However, there is no consensus regarding its optimal range for patient with chronic kidney disease (CKD). We aimed to analyze the effect of TSAT on the prognosis of patients with non-dialysis CKD (NDCKD). Methods: From 2011 to 2016, 2157 NDCKD patients with baseline TSAT measurements were followed for 10 years. Patients were divided into three groups based on baseline TSAT values: <25%, ≥25% and <45%, and ≥45%. All-cause mortality and 4-point major adverse cardiovascular events (MACE) were analyzed using multivariable Cox regression analysis. Other iron biomarkers and mortality were also analyzed. Results: During a mean follow-up of 7.1 ± 2.9 years, 182 of a total of 2,157 patients (8.4%) died. Compared with the TSAT ≥25% and <45% group, the TSAT <25% group showed significantly increased all-cause mortality (hazard ratio [HR], 1.44; 95% confidence interval (CI), 1.02–2.03; p = 0.04). The occurrence of 4-point MACE was significantly increased in univariable analysis in the TSAT <25% group (HR, 1.48; 95% CI, 1.02–2.15; p = 0.04), but it was not significant in the multivariable analysis (HR, 1.38; 95% CI, 0.89–2.15; p = 0.15). Tertile comparisons of the iron-to-log-ferritin ratio showed increased mortality in the first tertile group. Conclusion: TSAT <25% is an independent risk factor for all-cause mortality in patients with NDCKD and care should be taken to prevent TSAT values of <25%. Other indicators, such as serum iron and iron-to-log-ferritin ratio, may also be used to assess iron deficiency.
9.Capsular Contracture After Postmastectomy Radiation in Implant-Based Breast Reconstruction:Effect of Implant Pocket and Two-Stage Surgery
Sohyun MOON ; Kyunghyun MIN ; Tae Ho KIM ; Jung Hwan UM ; Yoonwon KOOK ; Seung Ho BAEK ; In Sik YUN ; Tai Suk ROH ; Soong June BAE ; Joon JEONG ; Sung Gwe AHN ; Young Seok KIM
Journal of Breast Cancer 2024;27(6):395-406
Capsular contracture (CC) is a concerning issue for individuals undergoing postmastectomy radiation therapy (PMRT) with implant-based breast reconstruction. This study investigated whether the extent of CC and implant migration differs based on implant placement and the reconstruction stage. Insertion plane and stage of breast implants were investigated, and the presence and severe cases of CC and implant migration were analyzed. Among 195 participants, 83 were in the pre-pectoral group, and 112 were in the sub-pectoral group. Two-staged surgery was performed on 116 patients, while 79 underwent direct-to-implant (DTI).Notably, The occurrence of CC (prepectoral, 17 [20.48%] and subpectoral, 42 [37.50%];p = 0.011), CC severity (prepectoral, 4 [4.82%] and subpectoral, 17 [15.17%]; p = 0.021), and implant upward migration (prepectoral, 15 [18.07%] and subpectoral, 38 [33.92%]; p = 0.014) significantly varied between the two groups. The incidence of CC was more common in the DTI group (odds ratio [OR], 2.283; 95% confidence interval [CI], 1.164–4.478). Furthermore, subpectoral placement was an independent risk factor for occurrence (OR, 2.989; 95% CI, 1.476–6.054) and severity of CC (OR, 38.552; 95% CI, 1.855–801.186) and upward implant migration (OR, 2.531; 95% CI, 1.263–5.071). Our findings suggest that pre-pectoral reconstruction and the two-stage operation benefit patients who may undergo PMRT. These approaches can help reduce the incidence of CC and abnormal implant migration following radiation, leading to improved aesthetic outcomes and greater patient satisfaction.
10.Associations of Peripapillary Retinal Nerve Fiber Layer and Macular Retinal Layer Thickness with Serum Homocysteine Concentration
Jung Tae KIM ; Young Hoon LEE ; Seung Kook BAEK
Journal of Retina 2024;9(1):10-17
Purpose:
The purpose of this study is to investigate peripapillary retinal nerve fiber layer (RNFL) and macular retinal layer thickness according to serum homocysteine concentration.
Methods:
Serum homocysteine levels of 120 retinal vein occlusion patients were measured. Peripapillary RNFL thickness and macular retinal layer thickness of unaffected eyes were measured by spectral domain optical coherence tomography and analyzed.
Results:
Average peripapillary RNFL thickness thinning (86.18 ± 19.78 µm vs. 99.61 ± 17.21 µm) (p < 0.001) and all quadrant (superior, nasal inferior, temporal) of peripapillary RNFL thickness thinning were observed in hyperhomocysteinemia patients. Average central macular thickness (CMT) (266.01 ± 29.59 µm vs. 278.71 ± 25.17 µm) was thinner in hyperhomocysteinemia patients (p = 0.029). Thinning of the macular nerve fiber layer (11.71 ± 3.46 µm vs. 14.35 ± 9.03 µm) and inner nuclear layer (25.45 ± 9.84 µm vs. 30.94 ± 13.88 µm) were also observed (p = 0.022, p = 0.041, respectively). There was a negative correlation between serum homocysteine and peripapillary RNFL thickness (r = -0.223, p = 0.015), and CMT (r = -0.230, p = 0.012), especially of the inner retinal layer.
Conclusions
This study found associations of serum homocysteine with peripapillary RNFL and macular retinal layer thickness.

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