The purpose of the study is to describe the cases with prepapillary or peripapillary vascular malformation who have experienced mild vitreous hemorrhage. Five patients [5 eyes], 1 male and 4 females, were included in the study.The vascular malformation was unilaterally present in all patients.Vitreous hemorrhage occurred from the area of retinal vascular malformation near or on the optic nerve, and cleared without further complications. Fluorescein angiographic feature of each eye was normal. Arteriovenous communication, secondary retinal exudation, or vascular leakage from vascular malformation was not observed. Each patient showed improvement in visual acuity of 2 lines or more. This benign, congenital vascular malformation may be non-progressive and infrequently cause mild vitreous hemorrhage.Therapeutic intervention was not necessary in these cases.
Female ; Fluorescein ; Hemorrhage ; Humans ; Male ; Optic Nerve ; Retinaldehyde ; Vascular Malformations* ; Visual Acuity ; Vitreous Hemorrhage

The case reported here, concerns a spontaneous low-flow fistula between the carotid arterial network and the cavernous sinus, with ophthalmological symptoms such as conjunctival congestion and diplopia in a 41-year-old woman. The patient has suffered from diabetes without trauma history. Patient's ocular symptoms and signs were only present in the left eye with best-corrected visual acuity 0.04 at the time of presentation. Other ophthalmic findings were exophthalmos, elevated intraocular pressure, and visual field defects. Enlarged extraocular muscles and proptosis were found on orbital computed tomography leading to the misdiagnosis of orbial pseudotumor or thyroid rbitopathy. Carotid angiography showed dural carotid-cavernous sinus fistula, which involved left-side internal and external carotid arterial network and right-side internal carotid arterial network. Orbital color Doppler imaging showed a flow reversal with a systolic component in the enlarged superior ophthalmic vein. We were able to diagnose dural carotid-cavernous sinus fistula. Dural carotid-cavernous sinus fistula was closed successfully by embolization via the vein without omplication. The visual acuity, proptosis, and dilated and tortuous vessels of the conjunctiva improved.
Adult ; Angiography ; Carotid-Cavernous Sinus Fistula ; Cavernous Sinus ; Conjunctiva ; Diagnostic Errors ; Diplopia ; Estrogens, Conjugated (USP) ; Exophthalmos ; Female ; Fistula* ; Humans ; Intraocular Pressure ; Muscles ; Orbit ; Thyroid Gland ; Veins ; Visual Acuity ; Visual Fields

PURPOSE: To report a case of Charles Bonnet syndrome that developed after resection of a meningioma. CASE SUMMARY: The authors reviewed the medical record, brain magnetic resonance image, and Goldmann visual field test of a 56-year-old male patient who was diagnosed with a meningioma in the right parietal and occipital lobe and underwent resection of the tumor. The preoperative Goldmann visual field test showed homonymous left inferior quadrantanopsia. Subtotal resection of the mass in the right parietal and occipital lobe was performed, and postoperative histopathologic examination confirmed the diagnosis of a meningioma. Postoperatively, the patient complained of visual hallucination in an area of the eye with visual field defects. However, his consciousness and orientations were intact, and other cognitive functions were also normal. CONCLUSIONS: Visual hallucination can manifest in an area with visual field defects after resection of abrain tumor. In such a case, a diagnosis of Charles Bonnet syndrome should be considered.
Brain ; Brain Neoplasms ; Consciousness ; Eye ; Hallucinations ; Hemianopsia ; Humans ; Magnetic Resonance Spectroscopy ; Male ; Medical Records ; Meningioma ; Middle Aged ; Occipital Lobe ; Orientation ; Visual Field Tests ; Visual Fields

The purpose of this study was to quantify the amount of remaining gutta-percha/sealer on the walls of root canals when three types of nickel-titanium rotary instruments(Profile, ProTaper and K3) and a hand instrument(Hedstrom file) used to remove these materials. The results of this study were as follows: 1. In the total time for gutta-percha removal, Profile group was the fastest and followed by K3, Protaper, Hedstrom file group. 2. In case of the evaluation of the volume of remained gutta-percha from radiograph, K3 group got the highest score and followed by Protaper, Hedstrom file, Profile group in the apical 1/3. 3. In case of the evaluation of the volume of gutta-percha remained from stereomicroscope, K3 group got the highest score and followed by Protaper, Hedstrom file, Profile group in the apical 1/3. These results showed that instrumentation using nickel-titanium rotary instrument groups was faster than that using hand instrument group. The effect of gutta-percha removal using Profile group was better than that using Protaper and K3 group in the nickel-titanium rotary instrument groups.
Dental Instruments ; Dental Pulp Cavity ; Gutta-Percha* ; Hand

With a purpose to find out natural transition of endemicity of Malayan filariasis in inland Korea, a survey was conducted in June 1980 in Isan-Myeon of Yongpung-Gun (former Yongju-Gun) where an epidemiological investigation had been carried out in 1973 without any control activities such as chemotherapy. Five sample villages were surveyed for microfilaremia by 20 microliter night blood examination among inhabitants and the results of the surveys conducted in 1973 and 1980 were compared to determine natural transition of the endemicity of malayan filariasis during the period of the last 7 years. The current microfilaria rate among inhabitants in the 5 villages was 2.2 percent on the average (male: 1.6 percent, female: 2.8 percent) from 370 persons examined. By village, the rates were 5.9 percent (number of persons examined: 34) in Baranggol, 0 percent (30) in Guitonggl, 4.2 percent (72) in Alseonggol, 0 percent(65) in Jangjagol and 1.8 percent (169) in Saehae. Extremely low microfilaria rate was noted in young age groups. By age group, no positive case was found in those age groups below 30-39 years except 10-14 age group in which 2 positives (4.4 percent) were found. Two positives each were found in the respective age groups of 40-49(3.2 percent), 50-59 (4.4 percent) and over 60 (3.4 percent). In evaluation of the natural transition of the endemicity during the period of the last 7 years, the microfilaria rate turned out from 13.1 percent in 1973 to 2.2 percent in 1980. The difference in the microfilaria rate was 10.9 percent and the natural reduction rate per year was 1.6 percent on the average. From the examination of 35 cases which had revealed microfilaremia 7 years ago, 85.7 percent(30) of them were found to have converted to microfilaria negatives. On the other hand, from the 151 cases which had revealed no microfilaria in 1973, only 0.7 percent (1) of them was found to have converted to microfilaria positive. In the intensity of microfilaremia, the number of microfilaria/20 microliter blood per positive case was 11.0 in 1973 and 9.1 in 1980. The number of microfilaria/20 microliter per examinee was 1.4 in 1973 and 0.2 in 1980, thus reduced to 1/7 during the period of the 7 years. The retarding endemicity of malayan filariasis in inland Korea was considered to be resulted in by the gradual increase of environmental factors in relation to ecology of vector mosquitoes, which adversely affect to the transmission of malayan filariasis. Followings are suggested to be the factors which control the transmission of the malayan filariasis in this area: Inhabitants are the only natural final host of Brugia malayi infection in this area, gradual elevation of living standards of the inhabitants, gradual awakening of consciousness and behavior among inhabitants to protect themselves from mosquito biting using such as mosquito nets and insecticide sprays, preference of animal bait of vector mosquitoes, Anopheles sinensis, increase in number of domestic animals and fowls being raised in the village areas which play a major part of blood donors to vector mosquitoes, and relatively short (3-4 months) period of mosquito season in a year.
parasitology-helminth-nematoda ; Brugia malayi ; epidemiology

The purpose of this study was to investigate the quantity of debris which was extruded apically after canal instrumentation using different types of enlarging instrument in endodontic resin models. Five groups of 9 endodontic resin models were instrumented using each different technique : hand instrumentation without early coronal flaring, hand instrumentation after early coronal flaring, and three nickel-titanium engine-driven instrumentations (Hero 642, Protaper, K3). Debris extruded from apical foramen during instrumentation was collected on preweighed CBC bottle, desiccated and weighted using electronic balance. The results were analyzed using Kruskal-wallis test and Mann-Whitney U rank sum test at a significance level of 0.05. The results were as follows: 1. All of instrumentation techniques produced apically extruded debris. 2. Group without early coronal flaring extruded significant more debris than groups with early coronal flaring. 3. There was no significant difference among early coronal flaring groups. The early coronal flaring is very important to reduce the amount of debris extruded apically.
Dental Instruments ; Tooth Apex

OBJECTIVE: Cervical carcinoma can be adequately treated when diagnosed in early stage. However, the progsnosis of recurrent cervical carcinoma remains poor. The objective of this study is to analyze the prognostic factors affecting survial of recurrent cervical carcinoma patients. METHODS: The clinical characteristics of eighty-three patients who were diagnosed as recurrent cervical carcinoma from Jan 1988 to Apr 1999 were retrospecively analyzed, The initial FIGO stage of II (67.5%) was the most predominant. There were 9.6% of adenocarcinoma, 9.6% of adenosquamous carcinoma, and 1.2% of small cell carcinoma other than squamous cell carcinoma (77.1%). Diagnosis of recurrence was made by histopathologic examination, CT/MRI, Chest X-ray, intravenous pyelography. The recurrence was detected on routine follow-up in 41.0%. Comparison of Kaplan-Meyer survival curve was made with log-rank test, P-value less than 0.05 was regarded as statistically significant. RESULTS: Overall 2-year survival rate was 37.3% and median survival was 17 [13-21, 95%CI] months. Four patients survived more than 5 years. There was no significant difference among survival rates of histopathologic types, Survival rates of patients with central recurrence were significantly higher than those of lateral and distant recurrence (P= 0.009). 13 patients who did not receive any treatment after recurrence survived only for 9 [7-11] months and the survival of those were significantly lower than the survival of patients who received treatment of any kind (P<0.001). The treatment modalities after recurrence did not affect survival. CONCLUSION: We conclude that regular follow-up of cervical carcinoma patients is very important in detecting recurrence and that treatment after recurrence does affect survival of patients.
Adenocarcinoma ; Carcinoma, Adenosquamous ; Carcinoma, Small Cell ; Carcinoma, Squamous Cell ; Diagnosis ; Follow-Up Studies ; Humans ; Recurrence ; Survival Rate ; Thorax ; Urography

PURPOSE: This retrospective study was performed to identify the clinical characteristics of influenza B infection and compare to influenza A infection. METHODS: Medical records of patients diagnosed with influenza using a multiplex PCR test, admitted to Seoul St. Mary's Hospital, during the 2011-2012 influenza season were analyzed. Clinical and laboratory characteristics of influenza B patients were investigated and compared with those of influenza A patients. RESULTS: A total of 145 influenza patients were enrolled during this study period. Among these, 66 and 78 patients were diagnosed with influenza A and B, respectively, and 1 patient was diagnosed with co-existing influenza A and B. Cough (88.2%), rhinorrhea (77.1%) and sputum (60.4%) were the most common symptoms among these influenza patients, and most were diagnosed with upper respiratory infection (31.9%) or lower respiratory infection (49.3%). In comparison to influenza A patients, influenza B patients were older (4.7+/-4.1 years vs. 3.3+/-2.5 years, P=0.016), and the number of fever days before hospitalization were longer (3.0 days vs. 2.5 days, P=0.043). While sore throat (10.3% vs. 1.5%, P=0.039) and vomiting (20.5% vs. 6.1%, P=0.012) were more common in influenza B patients than in influenza A patients, other clinical and laboratory characteristics were not significantly different between the two groups. CONCLUSIONS: No significant differences in clinical and laboratory perspectives were manifested in influenza A and B infections. Preventive measures should be emphasized over treatment in influenza B due to prolonged fever duration before admission.
Child ; Cough ; Fever ; Hospitalization ; Humans ; Influenza B virus ; Influenza, Human ; Medical Records ; Multiplex Polymerase Chain Reaction ; Pharyngitis ; Retrospective Studies ; Seasons ; Sputum ; Vomiting

PURPOSE: To evaluate the clinical features of high myopic eyes with cataracts implanted with negative power intraocular lenses (IOLs) at the time of cataract surgery. METHODS: A retrospective chart review was conducted of 18 eyes of 14 patients who underwent cataract surgery with negative power IOLs and 10 eyes in 9 patients with low power IOLs. We investigated axial length, IOL power, preoperative and postoperative best-corrected visual acuity (BCVA) and preoperative and postoperative spherical equivalent (SE) refractive errors. RESULTS: Mean BCVA showed significant improvement in both groups. We measured postoperative SE refraction and the difference between the mean intended and the mean achieved SE refractive errors in the negative power group (17 eyes) was +1.59 ± 1.34 D and +0.31 ± 0.50 D in the low power group. CONCLUSIONS: BCVA was significantly improved in the majority of eyes, although they had myopic macular degeneration or posterior staphyloma. However, the mean achieved postoperative SE refraction was more hyperopic than the predicted postoperative SE error. Additionally, hyperopic refractive error was greater in the negative power group than the low power group. Therefore, we recommend that postoperative hyperopic refractive error should be considered when performing cataract surgery in high myopic patients.
Cataract Extraction* ; Cataract* ; Humans ; Lens Implantation, Intraocular* ; Lenses, Intraocular* ; Macular Degeneration ; Myopia* ; Refractive Errors ; Retrospective Studies ; Visual Acuity

PURPOSE: To report a case of functional bilateral hemianopia which was not associated with any organic causes. CASE SUMMARY: A 35-year-old female patient presented with bilateral disturbance of visual acuity and visual field, which had begun 8 months prior. Goldmann perimetry showed bitemporal hemianopsia respecting the vertical meridian. Pupillary response was normal, and the anterior segment, fundus, and optic nerve were also normal bilaterally. However, the tangent screen test and Humphrey visual field test showed a widening of hemianopia not respecting the vertical meridian, and the crossing of isopters at 1 m and 2 m with the tangent screen test. In addition, multifocal electroretinogram and multifocal visual evoked potential did not reveal any abnormal findings corresponding to the bitemporal hemianopia. Brain magnetic resonance imaging showed no abnormal findings in the orbit and brain. CONCLUSIONS: Bitemporal hemianopsia can be developed functionally, although it may be rare. Repetition of various visual field tests and use of multifocal electrophysiologic studies can be helpful in the differential diagnosis.
Adult ; Brain ; Diagnosis, Differential ; Evoked Potentials, Visual ; Female ; Hemianopsia ; Humans ; Magnetic Resonance Imaging ; Optic Nerve ; Orbit ; Visual Acuity ; Visual Field Tests ; Visual Fields