1.Two Cases of Conjunctival Cyst Following Retinal Detachment Surgery.
Journal of the Korean Ophthalmological Society 1980;21(4):603-605
Traumatic implantation cyst of the conjunctiva has often been reported. We have observed two cases of conjunctival cyst following surgery of retinal detachment. A small vesicular lesion developed at the operation site of the conjunctiva about 5 weeks after the surgery. The cyst filled with clear fluid was located deep in the subconjunctival connective tissues. The wall of the cyst consisted of a few layers of epithelial cells very similar to the conjunctival epithelium and had not any direct connection with the overlying conjunctival epithelium. In order to prevent it a great care must be taken during surgery. A careful accurate apposition of the conjunctival wound will be required. An excessive and forceful retraction of the conjunctival flap for exposure of the operation field should be avoided. And also, an appropriate suture material (i.e. a round, tapered needle with smooth surfaced suture) seems to be necessary.
Conjunctiva
;
Connective Tissue
;
Epithelial Cells
;
Epithelium
;
Needles
;
Retinal Detachment*
;
Retinaldehyde*
;
Sutures
;
Wounds and Injuries
2.Effect of Corticosteroids Instillation on Intraocular Pressure and on Intraocular Pressure-lowering Action of Acetazolamide in Rabbit.
Un Sang PAEK ; Byung Heon CHO ; Kyu Chul CHE
Journal of the Korean Ophthalmological Society 1974;15(1):1-8
This study was undertaken to clarify the effects of glucocorticosteroids on intraocular pressure and the combined effects of acetazolamide and glucocorticosteroid on ocular pressure. Male and female rabbits, weighing 1.7-2.2kg, were divided into 5 groups: 1) saline-treated group, 2) hydrocortisone (0.5 %)-treated group, 3) prednisolone (0.5 %)-treated group, 4) fludrocortisone (0.1% )-treated group, 5) dexamethasone (0.1% )-treated group. Drugs were instilled 4 times a day for 3 weeks, and ocular pressure was checked in each group on second and third week. Following 3 weeks instillation of glucocorticoids, ocular pressure was checked in each animal at 15, 30, 60, and 120 minutes after intravenous administration of acetazolamide (10mg/kg). Under 0.5% tetracaine anesthesia, facility of outflow and flow rate of the aqueous humor were also measured with a tonometer. The results of the experiments were as follows: 1) The mean ocular pressure rose significantly in all glucocorticoid-treated groups, and the rise was especially marked in the dexamethasone-treated group. 2) The mean facility of outflow of the aqueous humor decreased significantly in the dexamethasonetreated group, but it remained with little change in the other glucocorticoidtreated group. 3) The ocular pressure-lowering action of acetazolamide was suppressed significantly at 30 minutes after the treatment with acetazolamide in the hydrocortisone and prednisolonetreated groups, but it was not suppressed in the fludrocortisone and the dexamethasonetreated groups. 4) The flow rate of the aqueous humor was suppressed significantly (36.2 %) at 30 minutes after the treatment with acetazolamide in the control group, but it was not suppressed significantly in g]ucocorticoid-treated groups.
Acetazolamide*
;
Administration, Intravenous
;
Adrenal Cortex Hormones*
;
Anesthesia
;
Animals
;
Aqueous Humor
;
Dexamethasone
;
Female
;
Fludrocortisone
;
Glucocorticoids
;
Humans
;
Hydrocortisone
;
Intraocular Pressure*
;
Male
;
Prednisolone
;
Rabbits
;
Tetracaine
3.A Case of Osteoma Involving the Orbit.
Doo Shik CHO ; Joo Hwa LEE ; Byung Heon AHN
Journal of the Korean Ophthalmological Society 1980;21(3):301-305
A large osteoma arising from the ethmoid sinus produced exophthalmos and diplopia. The troublesome symptoms disappeared after surgical removal of the lesion. The osteoma was an ivory type.
Diplopia
;
Ethmoid Sinus
;
Exophthalmos
;
Orbit*
;
Osteoma*
4.Preenhanced computed tomographic findings in brain death.
Heon YOO ; In One KIM ; Kyu Chang WANG ; Byung Kyu CHO
Journal of Korean Medical Science 1993;8(4):305-307
A patient complying with the clinical criteria for brain death was studied by preenhanced computed tomography (CT). Preenhanced CT showed apparent increased density at the base of the brain along the course of the major arterial vessels, and abnormally dense-appearing deep venous structures, like those of contrast-enhanced CT. There was a diffuse decrease in brain density with a poorly delineated ventricular system. These CT findings were very characteristic. CT as a non-invasive method seems to be valuable in the diagnosis of brain death. The relevant literature is reviewed and mechanisms showing those CT findings are discussed.
Brain Death/*radiography
;
Humans
;
Infant
;
Male
;
Perfusion
;
*Tomography, X-Ray Computed
5.Intermediate-term Result of e-PTFE Membrane Implant Surgery for Refractory Glaucomas.
Chang Sik KIM ; Yong Baek KIM ; Hang Jin CHO ; Byung Heon AHN
Journal of the Korean Ophthalmological Society 2000;41(1):184-196
Recently, various tube-shunt implants have been used in treating refractory glaucomas.They have large volumed reservoir portion made of hard materials.We made a new implant with soft and freely malleable membrane[expanded polytetrafluoroethylene, e-PTFE]as a reservoir portion attached to the conventional silicone tube. Based on the encouraging result from experimental animal study, we performed a clinical trial for the membrane-tube implant.We performed Glaucoma Tube-Shunt Implant surgery using double layers of e-PTFE membrane and silicone tube with its one end fixed between the two layers.The subjects had refractory glaucomas without useful vision who visited our hospital from May 1991 to Sep.1995. There were 40 eyes of 37 patients and their mean follow-up period was 32.6 months.We could control the IOP within 6~21 mms of mercury in 26 eyes[65.0%, Success].In remaining 14 eyes, we could not control the IOP or additional surgery was needed to control the IOP or treat severe complications[35.0%, Failure].The Kaplan-Meier Survival for IOP control was 78.4% at 1 yr, 71.6%at 2 yr, and 60.3%at 3 yr.The complications were similar to those of other commercially available Glaucoma implants. This new implant is made of soft, freely malleable membrane for the reservoir portion with small volume which can be inserted with smaller incision on the conjunctiva with less complication.We have obtained comparable result from this membrane-tube implant to other implants, and it may be considered as an another substitute for the treatment of refractory glaucomas.
Animals
;
Conjunctiva
;
Follow-Up Studies
;
Glaucoma*
;
Humans
;
Membranes*
;
Polytetrafluoroethylene
;
Silicones
6.Hypoglossal Neurinoma without Preoperative Hypoglossal Nerve Palsy - Report of 2 Cases -.
Dong Yeob LEE ; Sang Hyung LEE ; Heon YOO ; Hee Won JUNG ; Dae Hee HAN ; Byung Kyu CHO
Journal of Korean Neurosurgical Society 1999;28(12):1800-1804
Intracranial hypoglossal neurinomas are rare and only about fifty cases have been reported worldwidely. They usually present with hypoglossal nerve palsy preoperatively. The authors experienced, however, two cases of intracranial hypoglossal neurinomas without preoperative hypoglossal nerve palsy. One patient was operated using transcondylar retrosigmoid approach with C1 laminectomy and the other using midline suboccipital craniectomy with C1 laminectomy. Postoperatively hypoglossal nerve palsy was developed in both cases. Absence of preoperative hypoglossal palsy seemed to be related to somewhat different growth pattern in these two cases. When the tumor shows typical radiological findings of hypoglossal neurinoma, it must be included in differential diagnosis despite absence of preoperative hypoglossal nerve palsy.
Diagnosis, Differential
;
Humans
;
Hypoglossal Nerve Diseases*
;
Hypoglossal Nerve*
;
Laminectomy
;
Neurilemmoma*
;
Paralysis
7.Expression Pattern of Glucose Transporter GLUT1 Protein & Its Correlation with Prognostic Factors in Breast Cancer.
Byung Jin KIM ; Se Heon CHO ; Ghap Joong JUNG ; Sang Soon KIM ; Sook Hee HONG ; Mee Sook ROH
Journal of Korean Breast Cancer Society 2001;4(2):161-166
PURPOSE: Breast cancer of malignant tumor occurring in domestic women is a tumor frequently seen in the third order following uterine cervical cancer and gastric cancer. This tumor may be recur even following positive treatment, so various methods have been studied to elucidate risk factors for recurrence. In particular, among the various oncogenes concerned in the recurrence of breast cancer, some have been seen as prognostic factors. In a recent study of protein expression in the tumor cell, it was demonstrated that expression increases glucose uptake and utilization, and that Glut1 facilitating the glucose transporter is increased in expression in various tumors of body. Many studies have been conducted on the role of protein in this glucose transporter in breast cancer, yet more studies are required. METHODS: Dye studies were carried out according to an ordinary ABC method utilizing polyclonal anti-Glut1 antibody to detect Glut1 protein in 79 breast cancer samples. RESULTS: Among the 79 breast cancer tissue samples, 41 samples (52%) demonstrated expression of Glut1. Upon close examnination, the expression frequency of Glut1 in brest cancer in relation to existing breast cancer prognosis- related factors, showed a statistically significant correlation with the histologic grade of the breast cancer. CONCLUSION: As Glut1 positive expression was seen in the breast cancer cell, it is suggested that Glut1 is involved in the occurrence of breast cancer. In particular, in poorly differentiated breast cancer, the expression was frequency increased, which suggested its potential as a prognostic factor for breast cancer.
Breast Neoplasms*
;
Breast*
;
Female
;
Glucose Transport Proteins, Facilitative*
;
Glucose Transporter Type 1*
;
Glucose*
;
Humans
;
Oncogenes
;
Recurrence
;
Risk Factors
;
Stomach Neoplasms
;
Uterine Cervical Neoplasms
8.Expression Pattern of Glucose Transporter GLUT1 Protein & Its Correlation with Prognostic Factors in Breast Cancer.
Byung Jin KIM ; Se Heon CHO ; Ghap Joong JUNG ; Sang Soon KIM ; Sook Hee HONG ; Mee Sook ROH
Journal of Korean Breast Cancer Society 2001;4(2):161-166
PURPOSE: Breast cancer of malignant tumor occurring in domestic women is a tumor frequently seen in the third order following uterine cervical cancer and gastric cancer. This tumor may be recur even following positive treatment, so various methods have been studied to elucidate risk factors for recurrence. In particular, among the various oncogenes concerned in the recurrence of breast cancer, some have been seen as prognostic factors. In a recent study of protein expression in the tumor cell, it was demonstrated that expression increases glucose uptake and utilization, and that Glut1 facilitating the glucose transporter is increased in expression in various tumors of body. Many studies have been conducted on the role of protein in this glucose transporter in breast cancer, yet more studies are required. METHODS: Dye studies were carried out according to an ordinary ABC method utilizing polyclonal anti-Glut1 antibody to detect Glut1 protein in 79 breast cancer samples. RESULTS: Among the 79 breast cancer tissue samples, 41 samples (52%) demonstrated expression of Glut1. Upon close examnination, the expression frequency of Glut1 in brest cancer in relation to existing breast cancer prognosis- related factors, showed a statistically significant correlation with the histologic grade of the breast cancer. CONCLUSION: As Glut1 positive expression was seen in the breast cancer cell, it is suggested that Glut1 is involved in the occurrence of breast cancer. In particular, in poorly differentiated breast cancer, the expression was frequency increased, which suggested its potential as a prognostic factor for breast cancer.
Breast Neoplasms*
;
Breast*
;
Female
;
Glucose Transport Proteins, Facilitative*
;
Glucose Transporter Type 1*
;
Glucose*
;
Humans
;
Oncogenes
;
Recurrence
;
Risk Factors
;
Stomach Neoplasms
;
Uterine Cervical Neoplasms
9.Unusual presentation of retroperitoneal leiomyosarcoma mimicking an adnexal tumor with highly elevated serum CA-19-9.
Dong Hyu CHO ; Jeong Heon LEE ; Byung Chan OH
Obstetrics & Gynecology Science 2014;57(1):77-81
When retroperitoneal leiomyosarcoma develops in pelvic cavity, it often presents similar symptoms and radiological findings to adnexal tumor, therefore obscures diagnostic approaches until an exploratory laparotomy is performed. We report an unusual presentation of retroperitoneal leiomyosarcoma mimicking an adnexal tumor with extremely elevated serum CA-19-9. Though the most of the prominent mass was removed during surgery, there was massive bleeding due to tearing of internal iliac vein while dissecting the ureter close to vessels. This case focuses on the significance of considering retroperitoneal tumor even if the mass is located in ovarian fossa and has highly elevated serum level of CA-19-9. And in attempt of tumor removal, the excision needs to be clean-cut without damaging nerves or vessels around the mass and avoid causing any prospective complications.
Hemorrhage
;
Iliac Vein
;
Laparotomy
;
Leiomyosarcoma*
;
Ureter
10.The Ocular Complications in Children with Renal Disease Receiving Steroid Therapy.
Ja Heon KANG ; Mi Ae LEE ; Kyung Hyun JIN ; Byung Soo CHO
Journal of the Korean Ophthalmological Society 1999;40(7):1979-1986
We included 46 children with renal disease who received systemic corticosteroid therapy in our study and examined the correlation between the corticosteroid use and ocular complications. The average age of patients was 9 +/-4 years and the male: female ratio was 17:6. Cases for corticosteroid treatment were nephrotic syndrome in 16, Henoch-Sch ''onlein purpura in 9, MPGN in 9, Ig A nephropathy in 8,and others in 3. The mean duration of corticosteroid therapy was 11 months(1~77), and the mean total dose at the time of examination was 16,259 mg (2,250~61,292). The incidence of cataract formation was 47.8% and all had posterior subcapsular type. The severity of cataract was grade I in 12, grade II in 8,grade III in 1, and grade IV in 1 according to the Crews' classification.The incidence of intraocular pressure above 18 mmHg was 75%, compared to 18 mmHg (2SD) in normal control. There was no significant relation between the total dose of corticosteroid and the cataract formation, the severity of cataract,and the incidence of increased IOP. Also, there was no relation between the duration of therapy and them. In conclusion, We found that the ocular complications in children do not relate with the dose of corticosteroid and the duration of therapy and may be closely related to the individual susceptibility. It is essential to examine the eye carefully and follow up regularly those children who receive the corticosteroid therapy.
Cataract
;
Child*
;
Female
;
Follow-Up Studies
;
Glomerulonephritis, Membranoproliferative
;
Humans
;
Incidence
;
Intraocular Pressure
;
Male
;
Nephrotic Syndrome
;
Purpura