Papillophlebitis is a central retinal vein occlusion with papillitis and usually occurs in a young healthy adult. It is usually unilateral and symptoms include mild visual impairment, floaters of metamorphopsia. In contrast to central retinal vein occlusion in old age, there is usually no association with diabetes, hyopertension and cardiovascular disorder. Usually the retinal hemorrhage resolves spontaneousaly after several months and the papillitis decreases with good visual outcome. The authors experienced a papillophlebitis in 21-year-old male with sudden visual decrease of left eye. He had no systemic diseases. The patient recovered good vision with systemic steroid treatment. We report this case with review of previous reports.
Adult* ; Humans ; Male* ; Papilledema ; Retinal Hemorrhage ; Retinal Vein ; Vision Disorders ; Young Adult*

Trypsin and DNase digestion technique has become a retinal digestion technique for studying diabetic retinopathy. We tried osmotic digestion method with DNase and compared the quality of preparation of retina and microvascular change with trypsin digestion in normal and diabetic rats. Streptozotocin-induced diabetic rats were sacrificed at 9, 18, 27weeks in 6 rats. Right retinas were digested with 3% trypsin while left wer digested with 0.1% DNase. For control, 18 normal rats were sacrificed at the same time. DNase was superior to trypsin for retinal preparation on the stainability, the degree of separating nonvascular fissue from vascular net, the degree of preservation of vascular net in normal & diabetic rats. In diabetic rats, the number of pericyte decreased significantly with age, which not in normal rats(p=0.0023) We suggest DNase digestion technique as an new alternative for trypsin digestion technique in the study of microvascular change of diabetic retinopathy.
Animals ; Deoxyribonucleases* ; Diabetes Mellitus ; Diabetic Retinopathy ; Digestion* ; Endothelial Cells ; Microvessels* ; Pericytes ; Rats* ; Retina ; Retinaldehyde* ; Trypsin*

Induced refractive errors or anisometropia are known to cause reduction in stereoacuity. We compared the reduction of stereoacuities in anisometropia between far and near stereotests to determine the value of these tests as a screening tool of anisometropia. The far stereoacuity of 3m distance was tested with a red-green RDS developed with a color computer, and the near stereoacuity with TNO test in 10 normal adult volunteers. The effect of anisometropia. on the stereoacuity was tested by placing spherical lenses in 0.5 D steps bfore one eye(-2.0 D ~ +2.0 D). Stereoacuities tested at far showed a more rapid decrease than those at near as the power of the lenses was increased. The plus lenses showed more deteriorating effect on the stereoacuity than the minus lenses. And all subjects showed more than 620 arc seconds of stereoacuities with more diopter than +1.5D spherical lens. The far stereotest seems to be a more sensitive screening tool of anisometropia than the near stereotest especially in the mild degree(less than 2.0 D) of anisometropia.
Adult ; Anisometropia* ; Humans ; Mass Screening ; Refractive Errors ; Volunteers

Recently refractive corneal surgery has been increasing and intraocular lens implantation is a routine procedure during cataract surgery. Many people have various activities in the evening such as night driving, thus it may be very important measuring the pupil size in the dark in determining the size of the optical zone. We measured pupil size of sixty normal adult candidates in darkness of 0, 20, 60, 100 lux and also in the bright illumination of 200 lux for comparison using near lens camera and slide film. The pupils became larger with younger age and increased darkness. Pupil Size(log mm) = 4.57 - 0.0388 X Age(year) - 0.005 X Luminance(lux). The average pupil size of all age groups were 7.0mm, 6.56mm, 5.97mm, 5.4mm sequencially in darkness and 4.77mm in brightness(200 lux). The average pupil size of 20~30 year old group who are socially active even at night was 7.18mm and 8.4mm in maximum. This has significant meaning clinically. Additionally the size of pupil became larger with increased corneal diameter and the amount of anisocoria tended to be greater with the increase of the darkness.
Adult* ; Anisocoria ; Cataract ; Darkness ; Humans ; Lens Implantation, Intraocular ; Lighting ; Pupil*

Recently, immediately after losing teeth, implant placement has been greatly attempted. Implant can help restoration of tooth functions within short time. This study was an attempt to examine the extent of osseointergation when the implants will be placed immediately after teeth extraction using domestic implant systems. Implants were inserted in beagle dogs and evaluated the clinical, radiological, histological and histomorphometric assay at 6 weeks and 12 weeks. For experimental materials, STAGE-1(R)(4.1x8mm, Lifecore, USA), SS-III(R)(4.0x8mm, OSSTEM, Korea) and IFI(R)(4.0x8 mm, DIO, Korea) implants treated with RBM were placed. All the placed site showed normal results without fail and inflammation clinically and radiologically. As a result of measurement by periotest, it showed -2 ~ -5 and stable status comprehensively. There was no statistically significant difference among implants(p<0.05). Bone tissue adjacent to implant showed increased marrow tissue at 6 weeks. Nevertheless, osteogenic structure was not observed remarkably. In a 12 weeks opinion, bone tissue composed of osseointegration along implant interface showed significantly decreased marrow tissue containing central vessels unlike a 6 weeks opinion and matured compact bone whose osteogenic structure is well formed. BIC were 42.4%, 32.0% and 34.9%, respectively in 6 weeks and there was no statistically significant difference among groups(p<0.05). In 12 weeks, BIC were 58.8%, 61.9% and 57.5%, respectively and there was no statistically significant difference among groups(p<0.05). It is considered that all 3 implant systems are suitable for immediate implant placement.
Animals ; Bone and Bones ; Bone Marrow ; Dogs* ; Inflammation ; Osseointegration ; Tooth

BACKGROUND: Although the stapled anastomotic technique has achieved efficacy in gastrointestinal surgery, there are only a few experimental results comparing the physical properties of the anastomotic site, pathologic features of the healing process, and physiologic change after the operation. Moreover, there have been no comparative study among various stapled anastomotic techniques. The purpose of this study was to evaluate the safety of various stapled anastomotic techniques by comparing the physical properties of the anastomotic site, pathologic features of the healing process and physiologic change observed for the classical hand-sewn anastomotic technique with those observed for various stapled anastomotic techniques in the normal porcine colon and rectum. METHODS: Twelve male pigs were grouped into 4 according to the anastomotic techniques; standard Albert-Lembert two-layer hand-sewn anastomosis, stapled end-to-end anastomosis, stapled end-to-side anastomosis, and stapled side-to-side anastomosis. Each anastomotic technique was applied at 3 sites (ascending colon, transverse colon, and rectum). Groups of animals underwent a second surgery on the 4th week postoperatively, and the anastomotic properties were assessed with respect to the first day of defecation, bursting pressure, tensile strength, gross scar formation, microscopic inflammatory cell infiltration, telangiectasia, lymphangiectasia, foreign-body reaction, granulation and fibrosis. RESULTS: No significant difference among the respective anastomotic techniques was found with respect to the first day of defecation, bursting pressure, tensile strength, microscopic inflammatory cell infiltration, telangiectasia, and lymphangiectasia. However, more scar formation, foreign-body reaction, granulation and fibrosis were observed in the hand-sewn anastomosis. There was no significant difference among the groups of various stapled anastomotic techniques. CONCLUSION: According to this animal study, various stapled anastomoses were superior to the standard Albert-Lembert two-layer hand-sewn anastomosis with less scar formation, foreign-body reaction,granulation and fibrosis. In colorectal surgery, various stapled anastomotic techniques can be safely applied in accordance with the respective purpose and the anatomical characteristics.
Animals ; Breast Neoplasms* ; Breast* ; Cicatrix ; Colon* ; Colon, Transverse ; Colorectal Surgery ; Defecation ; Fibrosis ; Foreign-Body Reaction ; Humans ; Lymphatic Vessels ; Male ; Mastectomy ; Mastectomy, Radical ; Mastectomy, Segmental* ; Neoplasm Metastasis ; Rectum ; Recurrence ; Retrospective Studies ; Swine ; Telangiectasis ; Tensile Strength

BACKGROUND: This nationwide survey was undertaken to characterize the general pathological features of colorectal cancer in Korea, and especially to elucidate the geographical characteristics by means of their anatomical distribution. METHODS: We analysed 1,676 colorectal cancers (from 1,602 patients) surgically resected in 1998 at 15 institutions from nine geographical sites in Korea. RESULTS: The topographic incidence of colorectal cancer in seven out of the total nine geographical sites, was the highest in the rectum (32-54%); and those from Wonju and Cheongju were in the sigmoid colon (28% for both). The right colon cancer incidence was 42% in Wonju and 36% in Cheongju, while it was 17-22% in the other areas. The cecal cancer incidences in Wonju and in Taegu were 7% and 8%, respectively, but 0-4% in the other areas. As for histology, moderately differentiated adenocarcinoma was the most frequent (46-84%), except for in Wonju and Chonju, where the most predominant type was well differentiated (63% and 52%, respectively). CONCLUSION: The incidence of right colon cancer was higher in Wonju and Cheongju, than in the other geographical sites. The cecal predilection was prominent in Taegu and Wonju. The Elucidation of geographical differences in degree of differentiation for tubular adenocarcinoma seems to require further cumulative study with strict guidelines.
Adenocarcinoma ; Cecal Neoplasms ; Chungcheongbuk-do ; Colon, Sigmoid ; Colonic Neoplasms ; Colorectal Neoplasms* ; Daegu ; Gangwon-do ; Humans ; Incidence ; Jeollabuk-do ; Korea ; Pathology ; Rectum

The first edition of the ‘Standardized Pathology Report for Colorectal Cancer,’ which was developed by the Gastrointestinal Pathology Study Group (GIP) of the Korean Society of Pathologists, was published 13 years ago. Meanwhile, there have been many changes in the pathologic diagnosis of colorectal cancer (CRC), pathologic findings included in the pathology report, and immunohistochemical and molecular pathology required for the diagnosis and treatment of colorectal cancer. In order to reflect these changes, we (GIP) decided to make the second edition of the report. The purpose of this standardized pathology report is to provide a practical protocol for Korean pathologists, which could help diagnose and treat CRC patients. This report consists of “standard data elements” and “conditional data elements.” Basic pathologic findings and parts necessary for prognostication of CRC patients are classified as “standard data elements,” while other prognostic factors and factors related to adjuvant therapy are classified as “conditional data elements” so that each institution could select the contents according to the characteristics of the institution. The Korean version is also provided separately so that Korean pathologists can easily understand and use this report. We hope that this report will be helpful in the daily practice of CRC diagnosis.

BACKGROUND: This prospective phase II study assessed the efficacy and toxicity of the combination of carboplatin, ifosfamide and etoposide for previously untreated patients with extensive-disease small cell lung cancer (ED-SCLC). METHODS: Patients with ED-SCLC received a combination chemotherapy with carboplatin AUC 6.0 on day 1, ifosfamide 1200 mg/m2 on day 1-3, and etoposide 100 mg/m2 on day 1-3. RESULTS: Forty-one patients received a median of six cycles of chemotherapy. A complete response was seen in 5 patients and a partial response was seen in 33 patients (overall response 95%). The median duration of the response was 5.1 months (95% CI; 3.4-6.8 months). The median time to progression and overall survival were 7.4 months (95% CI; 6.1-8.6 months) and 10.7 months (95% CI; 6.9-14.6 months), respectively, providing the one-year survival rate of 43.9%. Grade 3~4 anemia, neutropenia and thrombocytopenia occurred in 14%, 7% and 6% in a total of 212 cycles, respectively. Non-hematologic toxicities were generally mild and manageable. No treatment related death was observed. CONCLUSIONS: The combination chemotherapy of carboplatin, etoposide and ifosfamide showed an effective response rate and acceptable toxicity.
Anemia ; Area Under Curve ; Carboplatin* ; Drug Therapy* ; Drug Therapy, Combination ; Etoposide* ; Humans ; Ifosfamide* ; Neutropenia ; Prospective Studies ; Small Cell Lung Carcinoma* ; Survival Rate ; Thrombocytopenia

BACKGROUND: The incidence of early colorectal epithelial neoplasm (ECEN) is increasing, and its pathologic diagnosis is important for patient care. We investigated the incidence of ECEN and the current status of its pathologic diagnosis. METHODS: We collected datasheets from 25 institutes in Korea for the incidence of colorectal adenoma with high grade dysplasia (HGD) and low grade dysplasia in years 2005, 2007, and 2009; and early colorectal carcinoma in the year 2009. We also surveyed the diagnostic terminology of ECEN currently used by the participating pathologists. RESULTS: The average percentage of diagnoses of adenoma HGD was 7.0%, 5.0%, and 3.4% in years 2005, 2007, and 2009, respectively. The range of incidence rates of adenoma HGD across the participating institutes has gradually narrowed over the years 2005 to 2009. The incidence rate of early colorectal carcinoma in the year 2009 was 21.2%. The participants did not share a single criterion or terminology for the diagnosis of adenoma HGD. The majority accepted the diagnostic terms that distinguished noninvasive, mucosal confined, and submucosal invasive carcinoma. CONCLUSIONS: Further research requirements suggested are a diagnostic consensus for the histopathologic diagnosis of ECEN; and standardization of diagnostic terminology critical for determining the disease code.
Academies and Institutes ; Adenoma ; Colorectal Neoplasms ; Consensus ; Incidence ; Korea ; Neoplasms, Glandular and Epithelial ; Pathology, Surgical ; Patient Care