1.Computed Tomography and Magnetic Resonance Images of Adrenocortical Oncocytoma Cases.
Jung Hee YOON ; Seong Sook CHA ; Seong Kuk YOON
Journal of Korean Medical Science 2014;29(3):445-451
We present two cases of adrenocortical oncocytomas that were well-delineated on multi-detector computed tomography and magnetic resonance imaging. The images showed a well-enhanced large mass with multiple stippled calcifications in a 10-yr-old girl who was consulted due to precocious puberty. A well-enhanced solid mass with necrotic components was incidentally noticed in a 54-yr-old man. These lesions were resected and diagnosed as adrenocortical oncocytomas through immunohistochemical studies and electron microscopy. Adrenocortical oncocytomas are rare disease entities, therefore, we report these interesting, rare adrenocortical oncocytomas here with radiologic findings, and discuss differential diagnosis.
Adenoma, Oxyphilic/*diagnosis/pathology/radiography
;
Adrenal Gland Neoplasms/*diagnosis/pathology/radiography
;
Child
;
Diagnosis, Differential
;
Female
;
Hemorrhage
;
Humans
;
Immunohistochemistry
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Magnetic Resonance Imaging
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Male
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Middle Aged
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Tomography, X-Ray Computed
2.A case of nucleus 22-channel cochlear implant.
Kwang Ryun KO ; Hee Wan PARK ; Hee Yoon KOO ; Kwang Ik KO ; Seong Soo BAN ; Seong Hyun CHO ; Yoon Hee PARK
Korean Journal of Otolaryngology - Head and Neck Surgery 1993;36(6):1327-1337
No abstract available.
Cochlear Implants*
3.The Effects of TGF-beta2 and bFGF on the Proliferation of Retinal Pigment Epithelial Cells.
Hee Seong YOON ; Sae Heun ROH ; Sung Chul LEE ; Jin Hee JEONG ; Young Hyun YOO
Journal of the Korean Ophthalmological Society 1998;39(6):1192-1203
This study was undertaken to document the effect of transforming growth factor-beta2 (TGF-beta2(TGF-beta2) and basic fibroblast growth factor (bFGF) on the proliferation of pig retinal pigment epithelial cells (RPE). Whereas bFGF increased the proliferation, TGF-beta2 showed the inhibitory effect on the proliferation The inhibitory effect of TGF-beta2 disappeared in RPE subcultured with 10ng/ml of bFGF. Both TGF-beta2- and bFGF-specific antisense oligonucleotides blocked the autocrine effect of the growth factors. PLC-71 -specific antisense oligonucleotide inhibited the effect of TGF-beta2 and bFGF. Genistein inhibited the effect of TGF-beta2 and bFGF in dose-dependent man, ner. The data suggest the involvement. of in PLC-/1 and tyrosine kinase in signalling.
Epithelial Cells*
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Fibroblast Growth Factor 2
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Genistein
;
Intercellular Signaling Peptides and Proteins
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Oligonucleotides, Antisense
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Protein-Tyrosine Kinases
;
Retinaldehyde*
;
Transforming Growth Factor beta2*
4.Facial nerve decompression in Melkersson-rosenthal syndrome.
Seong Soo BAN ; Hee Yoon KOO ; Kwang Ik KO ; Hee Wan PARK ; Kwang Ryun KO
Korean Journal of Otolaryngology - Head and Neck Surgery 1993;36(5):903-908
No abstract available.
Decompression*
;
Facial Nerve*
;
Melkersson-Rosenthal Syndrome*
5.A Case of Cutaneous Larva Migrans Improved by Oral Ivermectin
Hee Seong YOON ; Si Hyub LEE ; Seung Dohn YEOM ; Jeonghyun SHIN ; Gwang Seong CHOI ; Ji Won BYUN
Korean Journal of Dermatology 2018;56(1):70-72
No abstract available.
Ivermectin
;
Larva Migrans
6.Long-Term Observation of Retinal Pigment Epithelial Tear after Anti-VEGF Treatment for Age-Related Macular Degeneration.
Jae Hong PARK ; Woo Seok CHOAE ; Hee Seong YOON
Journal of the Korean Ophthalmological Society 2014;55(9):1340-1346
PURPOSE: To evaluate the long-term clinical outcomes of retinal pigment epithelium (RPE) tears after intravitreal injection of anti-vascular endothelial growth factor (VEGF) agent for the treatment of neovascular age-related macular degeneration (AMD). METHODS: The authors performed a retrospective chart review of 13 eyes of 13 patients who developed RPE tears after intravitreal anti-VEGF injection between February 2009 and June 2013. We investigated continuation of the treatment after tear, visual acuity, presence of cystoid macular edema, and central macular thickness (CMT) using optical coherence tomography (OCT) before and after treatment and visual outcomes depending on foveal sparing. RESULTS: After RPE tear, 12 of 13 patients continued injection of an anti-VEGF agent. The average number of injections was 6.08 +/- 5.18. Mean visual acuity immediately after tear was 1.65 +/- 0.8 log MAR, and that at the last visit was 1.82 +/- 0.88 log MAR. Nine eyes with macular edema in OCT continued receiving injection, and improvement of macular edema was observed in four eyes at the final visit. The final visual acuity of patients with foveal involvement was 2.17 +/- 0.49 log MAR, which was worse than the 1.51 +/- 1.06 log MAR in patients without foveal involvement, although the difference was not significant (p = 0.295). CONCLUSIONS: When anti-VEGF injections were continued after RPE tear, no improvement in visual acuity was observed, although better anatomical outcomes did result. Patients with foveal involvement had worse visual acuity than patients without foveal involvement, but the difference was not significant.
Endothelial Growth Factors
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Humans
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Intravitreal Injections
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Macular Degeneration*
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Macular Edema
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Retinal Pigment Epithelium
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Retinaldehyde*
;
Retrospective Studies
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Tomography, Optical Coherence
;
Visual Acuity
7.A Case of Severe Air Leak Syndrome Treated with High - Frequency Oscillatory Ventilation ( HFOV ).
Seong Hee SHIN ; Je Woo KIM ; Phil Soo OH ; Young Ah LEE ; Hye Sun YOON
Journal of the Korean Society of Neonatology 1999;6(1):121-126
In air leak syndrome, a significant portion of the volume delivered during a positive pressure breath can be lost through the leak. HFOV can achieve adequate ventilation at lower peak and/or mean intrapulmonary pressure than conventional mechanical ventilation (CMV) and has been an effective treatment of already established air leak syndrome. We report a 1-day-old male infant with severe respiratory failure from pneumothorax and pneumomediastinum, who was refractory to CMV with chest tube drainage. HFOV was applied to this patient for 114 hours, and improvement of oxygenation and ventilation as well as significant reduction of pneumothorax followed.
Chest Tubes
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Drainage
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Humans
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Infant
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Male
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Mediastinal Emphysema
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Oxygen
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Pneumothorax
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Respiration, Artificial
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Respiratory Insufficiency
;
Ventilation*
8.Lipomatous Neurofibroma on the Scalp.
Seon Gu LEE ; Seong Rak SEO ; Hee Jung LEE ; Moon Soo YOON ; Dong Hyun KIM
Korean Journal of Dermatology 2017;55(9):623-624
No abstract available.
Neurofibroma*
;
Scalp*
9.Granuloma Annulare Occurring on Preceding Herpes Zoster as an Isotopic Response.
Seong Rak SEO ; Jae Yang PARK ; Hee Jung LEE ; Dong Hyun KIM ; Moon Soo YOON
Korean Journal of Dermatology 2016;54(2):156-158
No abstract available.
Granuloma Annulare*
;
Granuloma*
;
Herpes Zoster*
10.The Effects of Pa n retinal Photocoagulation on Macular Microcirculation in Diabetic Retinopathy(Short term follow up).
Jin Ho WOO ; Jang Won HEO ; Hee Seong YOON
Journal of the Korean Ophthalmological Society 1999;40(5):1276-1280
We investigated the effects of panretinal photocoagulation (PRP)on macular microcirculation in diabetic retinopathy. PRP using argon blue green laser was performed in 23 eyes of 15 patients with early proliferative diabetic etinopathy and very severe nonproliferative diabetic retinopathy without significant macular edema. The changes in volume, flow, velocity of macular microcirculation were measured before PRP, 1 hour, 1 day, 1 week, and 1 month following PRP, using Heidelberg Retina Flowmeter(HRF). Mean volume, flow, velocity of macular microcirculation decreased to a maximal degree 1 hour following PRP, from 14.87+/-0.40, 387.45 +/-101.40, 1.40+/-0.28(before PRP)to 12.44+/-1.39, 347. 33+/-100.39, 1.27+/-0.34(p<0.05). From 1hour to 1 month after PRP, macular microcirculation gradually increased. However, throughout this period, all parameters of macular microcirculation remained lower than pre-PRP level(p<0.05). Our study suggests that panretinal photocoagulation reduces the macular microcirculation in diabetic retinopathy.
Argon
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Diabetic Retinopathy
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Humans
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Light Coagulation*
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Macular Edema
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Microcirculation*
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Retina
;
Retinaldehyde*