PURPOSE: This comparative study analyzed the relationship between the preoperative diagnostic tumor size and the postoperative pathologic tumor size for breast cancer patients and benign breast tumor patients. METHODS: We analyzed the clinicopathological information of 191 breast cancer patients and 187 benign breast tumor patients by conducting a retrospective chart review. The preoperative diagnostic tumor sizes were measured using physical examination, mammography and sonography in the benign breast tumor patients and they were additionally measured by computerized tomography and magnetic resonance imaging in the breast cancer patients. Body mass index (BMI) was defined as the ratio of the body weight in kilograms to the square of height in meters. RESULTS: The tumor sizes measured by mammography (r=0.66) and physical examination (r=0.87) were highly correlated to the pathologic tumor size in the breast cancer patients and benign the breast tumor patients, respectively. Physical examination and magnetic resonance imaging had a tendency to overestimate the tumor size and sonography underestimated the pathologic tumor size in the breast cancer patients. The correlation coefficient for the physical examination was increased when the patient age was less than 50 years and the BMI was less than 25. Multiple regression analysis revealed that assessing the tumor size according to physical examination, mammography and sonography were effective for determining estimation of pathologic tumor size in the benign breast tumor patients, but assessing the tumor size by physical examination and sonography was not effective for determining the tumor size in breast cancer patients. CONCLUSION: Mammography and physical examination can be useful to estimate the pathologic tumor size in breast cancer patients and benign breast tumor patients, respectively. Physical examination can be useful to estimate the size when a breast tumor is palpable, the age of a patient is less than 50, and the BMI is less than 25.
Body Mass Index ; Body Weight ; Breast ; Breast Neoplasms ; Humans ; Magnetic Resonance Imaging ; Mammography ; Physical Examination ; Retrospective Studies ; Tumor Burden

Whereas extramammary Paget's disease commonly occurs in the apocrine gland rich skin areas, ectopic extramammary Paget's disease develops in the skin areas that are devoid of apocrine glands. We experienced the case of a 34 year-old female patient who had a skin lesion in the upper outer quadrant of the right breast for 5 years and that lesion was diagnosed as Paget's disease according to the punch biopsy. There was no other underlying malignancy, and so wide excision was performed. The final pathologic diagnosis was Paget's disease confined to the epidermis and the size of the tumor was 3.0x1.1 cm. Positive staining for cytokeratin 7, epithelial membrane antigen and negative staining for S-100 protein and HMB-45 was observed on the immunohistochemical tests. We report here on an extremely unusual case of ectopic extramammary Paget's disease of the breast skin, and we include a review of the relevant literature.
Apocrine Glands ; Biopsy ; Breast ; Epidermis ; Female ; Humans ; Keratin-7 ; Mucin-1 ; Negative Staining ; Paget Disease, Extramammary ; S100 Proteins ; Skin

PURPOSE: The implementation of the Korean diagnosis-related groups (DRG) payment system has been recently introduced in selected several diseases including appendectomy in Korea. Here, we report the early outcomes with regard to clinical aspects and medical costs of the Korean DRG system for appendectomies in Seoul Metropolitan Government - Seoul National University Boramae Medical Center throughout comparing before and after introduction of DRG system. METHODS: The DRG system was applied since January 2013 at our institute. After the DRG system, we strategically designed and applied our algorithm for the treatment of probable appendicitis. We reviewed the patients who were treated with a procedure of appendectomy for probable appendicitis between July 2012 and June 2013, divided two groups based on before and after the application of DRG system, and compared clinical outcomes and medical costs. RESULTS: Total 416 patients were included (204 patients vs. 212 patients in the group before vs. after DRG). Shorter hospital stays (2.98 +/- 1.77 days vs. 3.82 +/- 1.84 days, P < 0.001) were found in the group after DRG. Otherwise, there were no significant differences in the perioperative outcomes and medical costs including costs for first hospitalization and operation, costs for follow-up after discharge, frequency of visits of out-patient's clinic or Emergency Department or rehospitalization. CONCLUSION: In the Korean DRG system for appendectomy, there were no significant differences in perioperative outcomes and medical costs, except shorter hospital stay. Further studies should be continued to evaluate the current Korean DRG system for appendectomy and further modifications and supplementations are needed in the future.
Appendectomy* ; Appendicitis ; Diagnosis-Related Groups* ; Emergency Service, Hospital ; Follow-Up Studies ; Health Care Costs ; Hospitalization ; Humans ; Korea ; Length of Stay ; Local Government ; Prospective Payment System ; Seoul

Liver transplantation (LT) has been the key therapy for end stage liver diseases. However, LT in infancy is still understudied. From 1992 to 2010, 152 children had undergone LT in Seoul National University Hospital. Operations were performed on 43 patients aged less than 12 months (Group A) and 109 patients aged over 12 months (Group B). The mean age of the recipients was 7 months in Group A and 74 months in Group B. The patients' survival rates and post-LT complications were analyzed. The mean Pediatric End-stage Liver Disease score was higher in Group A (21.8) than in Group B (13.4) (P = 0.049). Fulminant hepatitis was less common in Group A (4.8%) than in Group B (13.8%) (P = 0.021). The post-transplant lymphoproliferative disorder and portal vein complication were more common in Group A (14.0%, 18.6%) than in Group B (1.8%, 3.7%) (P = 0.005). However, the 1, 5, and 10 yr patient survival rates were 93%, 93%, and 93%, in Group A and 92%, 90%, and 88% in Group B (P = 0.212). The survival outcome of pediatric LT is excellent and similar regardless of age. LTs in infancy are not riskier than those of children.
Adolescent ; Age Factors ; Child ; Child, Preschool ; End Stage Liver Disease/mortality/*surgery ; Female ; Graft Rejection/epidemiology ; Graft Survival ; Herpesviridae Infections/etiology ; Humans ; Infant ; Liver Transplantation/*adverse effects/*statistics & numerical data ; Lymphoproliferative Disorders/*etiology ; Male ; Proportional Hazards Models ; Risk Factors ; Severity of Illness Index ; Survival Rate ; Treatment Outcome ; Vascular Diseases/etiology

Epidemic keratoconjunctivitis (EKC) and acute hemorrhagic conjunctivitis (AHC) are common diseases caused by human adenoviruses (HAdV) and enteroviruses, respectively, in South Korea. However, there are limited studies on the molecular epidemiology of viral conjunctivitis in South Korea. The main objective of this study was to characterize the genotypes of adenoviruses and enteroviruses causing viral conjunctivitis in the southwest region of South Korea. We collected conjunctival swabs from 492 patients with suspected cases of viral conjunctivitis from 6 ophthalmic hospitals in Gwangju Metropolitan City, in South Korea, between 2012 and 2016. Of the 492 samples tested, HAdVs and enteroviruses were detected in 249 samples (50.6%) and 19 samples (3.9%), respectively. The genotype analysis detected HAdV-8 in 183 samples (73.5%), HAdV-37 in 14 samples (5.6%), and HAdV-3, and HAdV-4 in 9 samples (3.6%) each. We detected coxsackievirus A24 (CVA24) and coxsackievirus B1 (CVB1) in 8 samples (42.0%) and 4 samples (21.0%), respectively. We also reported for the first time HAdV-56-infected cases of EKC in South Korea. Furthermore, we found three cases of coinfection with HAdV and enterovirus genotypes in our samples. HAdV-8 and CVA24, the main causes of EKC and AHC, respectively, worldwide, were also found to be the predominant genotypes in our study.
Adenoviridae ; Adenoviruses, Human ; Coinfection ; Conjunctivitis, Acute Hemorrhagic ; Conjunctivitis, Viral* ; Enterovirus ; Genotype ; Gwangju ; Humans ; Keratoconjunctivitis ; Korea* ; Molecular Epidemiology*