1.Foveomacular Vitelliform Dystrophy, Adult Type.
Joong Hee CHUNG ; Byung Joo YOON ; Hyung Jeon KIM
Journal of the Korean Ophthalmological Society 1991;32(12):1149-1152
Vitelliform macular dystrophy, adult type, is a type of pattern dystrophies of the pigment epithelium characterized by autosomal daminant inheritance, mid-life onset and small, round or oval, yellow deposits located at the level of the pigment epithelium. The authors report a case of this dystrophy which showed small yellow round lesion measuring 1/4-1/3 D.D. within the macula, normal electroretinogram, subnormal electrooculogram light-peak/dark-traugh ratio. typical irregular ring-like transmitted fluorescence surrounding the central non-fluorescent Iesion and leakage from perifoveal capillaries on fluorescent angiogram.
Adult*
;
Capillaries
;
Electrooculography
;
Epithelium
;
Fluorescence
;
Humans
;
Vitelliform Macular Dystrophy*
;
Wills
2.Cryoextraction-Results in 234 Cases.
Hyung Jeon KIM ; Byung Joo YOON ; Hae Sook LEE
Journal of the Korean Ophthalmological Society 1970;11(4):55-57
The results of 234 cataract extractions by freezing method are presented. An important advantage of cryoextraction is the reduced incidence of accidental capsular rupture. Good results can be achieved even by the begginner. Cryoextraction of cataract has proved well suited as a routine method.
Cataract
;
Cataract Extraction
;
Freezing
;
Incidence
;
Rupture
3.A Scleral Homograft on Pseudomonal Scleral Abscess after Pterygium Excision.
Seung Ik JANG ; Byung Joo YOON ; Hyung Jeon KIM
Journal of the Korean Ophthalmological Society 1992;33(2):185-189
Pseudomonas scleral abscess is characterized by acute onset and rapid progression to scleral perforation, and has a subsequent risk of endophthalmitis. After control of infection with appropriate antibiotics, graft surgery should be performed for reinforcing the defected sclera. We performed a scleral homograft on the eye with large necrotic sclera caused by Pseudomonas aeruginosa infection after pterygium excisIon. And the results were remarkably good.
Abscess*
;
Allografts*
;
Anti-Bacterial Agents
;
Endophthalmitis
;
Pseudomonas
;
Pseudomonas aeruginosa
;
Pterygium*
;
Sclera
;
Transplants
4.A Case Report of Takayaeu's Arteritis Associated with, a Retinopathy.
Jin Hwal SUH ; Byung Joo YOON ; Hyung Jeon KIM
Journal of the Korean Ophthalmological Society 1989;30(5):829-833
The authors have experienced a case of Takayasu's arteritis associated with Takayasu's retinopathy which is confirmed by aortography and fluorescent angiography in a 14 year old female.
Adolescent
;
Angiography
;
Aortography
;
Arteritis*
;
Female
;
Humans
;
Takayasu Arteritis
5.Behcet's Syndrome: Report of six cases.
Hyung Jeon KIM ; Byung Joo YOON ; Kwang Il KOO
Journal of the Korean Ophthalmological Society 1971;12(4):189-192
189-192 Six male patients with typical symptoms of Behcet's syndrome were subjected to a clinical examination. One of these was a Chinese patient. The age when the disease started was between 20 to 39 years. All of them became blind but no one was dead.
Asian Continental Ancestry Group
;
Behcet Syndrome*
;
Humans
;
Male
6.Granular Corneal Dystrophy.
Yoon Sang LEE ; Byung Jeon KIM
Journal of the Korean Ophthalmological Society 1982;23(3):743-747
Granular corneal dystrophy is primary heredofamilial dystrophy of the cornea, which is characterized by the presence of plemorphic milk-white spots in the superficial stroma in the central cornea. This corneal dystrophy was first ,described by Arthur Groenouw in 1890. Since then. many other types of familial corneal dystrophies have been discribed by morphological characteristics. In 1938 BUcklers classified the corneal dystrophy into 3 types; granular, macular and lattice dystrophy, whose nemenclature is now generally accepted. Now we report 2 cases of granular corneal dystrophies which involved 2 sisters in a family.
Cornea
;
Humans
;
Siblings
7.Hair Growth Promoting Potential of Phospholipids Purified from Porcine Lung Tissues.
Seong Hyun CHOI ; Jeong Su MOON ; Byung Suk JEON ; Yeon Jeong JEON ; Byung Il YOON ; Chang Jin LIM
Biomolecules & Therapeutics 2015;23(2):174-179
BP201, porcine lung tissue-derived phospholipids, consists of phosphatidylcholine as a major phospholipid species. BP201 promoted hair growth after application onto the shaved backs of BALB/c and C3H mice. Its effect was enhanced when applied together with minoxidil (MNX) in C3H mice. When the tissue specimens prepared from the shaved skins of BP201-treated and control mice were microscopically examined, the total numbers of hair follicles in both anagen and telogen phases of BP201-treated mice were significantly higher than those of control mice. The numbers of hair follicles in the anagen phase of BP201-treated mice were also higher than those of control mice. In combination with MNX, BP201 further increased the total number of hair follicles, but did not alter the percentage of hair follicles in the anagenic phase. BP201 also increased the proliferation of human hair follicle dermal papilla cells. Collectively, BP201 possesses hair growth promoting potential, which would suggest its use singly or in combination for hair growth products.
Animals
;
Hair Follicle
;
Hair*
;
Humans
;
Lung*
;
Mice
;
Mice, Inbred C3H
;
Minoxidil
;
Phosphatidylcholines
;
Phospholipids*
;
Skin
8.Embryonal rhabdomyosarcoma in the abdominal cavity of an aged Sprague-Dawley rat.
Hak Soo KIM ; Byung Suk JEON ; Byung Woo LEE ; Byung Il YOON
Korean Journal of Veterinary Research 2015;55(1):71-73
We report a spontaneous embryonal rhabdomyosarcoma in the abdominal cavity of an aged (88-week-old) Sprague-Dawley rat. The animal had a firm lobulated 5 x 5 x 4.5 cm mass in the abdominal cavity that was whitish to tan with necrotic and hemorrhagic plaques. Microscopically, the mass contained nodules with spindle or globoid shaped neoplastic cells with abundant eosinophilic cytoplasm and round or elongated nuclei mixed with other spindle cells with a filamentous appearance and scanty cytoplasm. Multinucleated cells and cross-striations were also observed. The neoplastic cells were positive for vimentin, desmin, and alpha-smooth muscle actin, especially the small spindle cells.
Abdominal Cavity*
;
Actins
;
Animals
;
Cytoplasm
;
Desmin
;
Eosinophils
;
Rats*
;
Rats, Sprague-Dawley*
;
Rhabdomyosarcoma, Embryonal*
;
Triacetoneamine-N-Oxyl
;
Vimentin
9.Uterine leiomyosarcoma in a wild rat (Rattus norvegicus): usefulness of Ki-67 labeling index for diagnosis.
Byung Suk JEON ; Hyung Gi KIM ; Byung Woo LEE ; Jeong Hee HAN ; Byung Il YOON
Laboratory Animal Research 2013;29(2):127-130
Uterine smooth muscle tumor is very rare in laboratory rats and, there has been no report in the wild rodents. Among a total of 400 wild rats captured in Gyeonggi, Gangwon, and Chungbuk provinces of Korea in 2007, 2010, and 2011, we found a uterine spindle cell tumor, diagnosed as smooth muscle cell origin based on differential features of histology and immunohistochemistry. Its incidence was very low, like in the laboratory rats, as under 0.5% for female. Considering generally applied histological and cellular criteria, this case was difficult in differential diagnosis between benign and malignant. Ki-67 labeling index was therefore further investigated, and it ranged from 26.4 to 37.6% in the 10 different areas, representing an average of 32.9+/-0.05%. The Ki-67 labeling index of neoplastic cells near the necrotic area was recorded as 83.5%. According to such high Ki-67 labeling index, it was more likely a malignant leiomyosarcoma, assenting to the previous proposal that Ki-67 labeling index is a significant criterion to differentiate between malignant and benign in the smooth muscle tumors.
Animals
;
Diagnosis, Differential
;
Female
;
Humans
;
Immunohistochemistry
;
Incidence
;
Korea
;
Leiomyosarcoma
;
Myocytes, Smooth Muscle
;
Rats
;
Rodentia
;
Smooth Muscle Tumor
10.A Case of Cervical Synovial Cyst Causing Myelopathy.
Yong Ken PARK ; Byung Yoon JEON ; Young Soo KIM
Journal of Korean Neurosurgical Society 1996;25(7):1480-1483
Synovial cysts occur typically in peripheral joints and tendon sheaths. They rarely occur intraspinally. Recently we have experienced a case of extradural synovial cyst in the cervical spine, causing a myelopathy which results in progressive motor weakness and sensory change. The case is therefore presented with review of literatures.
Joints
;
Spinal Cord Diseases*
;
Spine
;
Synovial Cyst*
;
Tendons