It is well known that the computed tomography(CT) is very useful i the evalutaion of obstructive jaundice. Wehave studied 55 cases of obstructive jaundice with whole body scanner from Jun. 1980 to Jun. 1981. The resultswere as follows; 1. The sex distribution was 36 males and 19 females, and 40 cases of obstructive jaundice wereseen in fifth, sixth, and seventh decades. 2. Causes of obstructive jaundice were 25 cases of pancreas cancer, 8cases of common duct cancer, 4 cases of gall bladder cancer, 4 cases of ampulla vater cancer, 12 cases of commonduct stone, and 2 cases of common duct stricture. 3. Levels of obstruction were 8 cases of hepatic portion, 15cases of suprapancreatic portion, 28 cases of pancreatic portion, and 4 cases of ampullary portion. 4. In tumorouscondition, CT demonstrated metastasis of other organs, 9 cases of the liver, 1 case of the lung, 3 cases of thepancreas, 3 cases of the common bile duct, 1 case of the stomach,and 12 cases of adjacent lymph nodes. 5.Associated diseases were 12 cases of intrahepatic stone. 4 cases of clonorchiasis, 2 cases of pancreas pseudocyst,1 cases of hydronephrosis, and 1 case of renal cyst.
Clonorchiasis ; Common Bile Duct ; Constriction, Pathologic ; Female ; Gallbladder Neoplasms ; Humans ; Hydronephrosis ; Jaundice, Obstructive ; Liver ; Lung ; Lymph Nodes ; Male ; Neoplasm Metastasis ; Pancreas ; Pancreatic Neoplasms ; Sex Distribution

PURPOSE: To analyze angiearchitecture of arteriovenous malformations(AV malformation) in order to clarify the angiegraphic risk factors for intracerebral hemorrhage and other nonhemorrhagic symptoms. MATERIALS AND METHODS: Eighty-five patients with angiegraphically-proved brain arteriovenous malformation were included in this study. Retrospective review of clinical history and angiography was done. Topographic analysis and evaluation of 17 angiearchitectural characteristics were conducted. RESULTS: Deep-seated and cortico-callosal type, small nidus size, intranidal pouch, one draining vein, deep venous drainage only venous stenosis and venous aneurysm were the most discriminating or predictive characteristics of hemorrhage in brain arteriovenous malformation. And those with large nidus size, dural supply and venous hypertension were correlated with nonhemorrhagic symptoms such as seizure, headache and neurologic deficit. CONCLUSION: Detailed analysis of the angiearchitecture of brain arteriovenous malformations is needed to identify the features that are correlated with prognostic implications for the treatment of patients with ^V malformations.
Aneurysm ; Angiography ; Arteriovenous Malformations* ; Brain* ; Cerebral Hemorrhage ; Constriction, Pathologic ; Drainage ; Headache ; Hemorrhage ; Humans ; Hypertension ; Neurologic Manifestations ; Retrospective Studies ; Risk Factors ; Seizures ; Veins

No abstract available.
Female ; Pregnancy ; Pregnancy Outcome* ; Pregnancy*

Objective: Mammography is essential for reducing breast cancer mortality; however, its performance varies globally. This study aimed to evaluate mammography screening outcomes in Korea over 12 years and investigate regional variations. Materials and Methods: We analyzed mammography data from 42 million Korean women, aged 40 years and older, who participated in the Korean National Cancer Screening Program (KNCSP) from 2009 to 2020. Performance metrics—including recall rate (RR), positive predictive value (PPV), sensitivity, specificity, false positive rate (FPR), cancer detection rate (CDR), interval cancer rate (ICR), and dense breast rate (DBR), were computed. Twelve-year trends in these metrics were analyzed using Joinpoint regression. Regional variations were also examined across Korea’s 237 districts, stratified by age groups. Results: From 2009 to 2020, 42165405 mammography screenings were conducted through the KNCSP, increasing from 2821132 screenings in 2009 to 3596204 in 2020. The RR decreased from 17.2% in 2009 to 11.2% in 2020 (average annual percent change [AAPC] = -3.7%), while the PPV increased from 0.8% to 2.8%; AAPC = 10.7%), the CDR increased from 1.5 to 3.1 per 1000; AAPC = 7.3%), and the ICR rose from 0.9 to 1.6 per 1000; (AAPC = 5.2%). Regional variations were noted; however, differences in the RR, sensitivity, specificity, and FPR decreased over time. Conclusion While mammography performance improved from 2009 to 2020, the PPV and sensitivity remain suboptimal, underscoring the need for continuous monitoring. Regional disparities in performance, although reduced, persist. These findings provide essential baseline data for improving mammography quality and addressing inequities in breast cancer screening.

Objective: Mammography is essential for reducing breast cancer mortality; however, its performance varies globally. This study aimed to evaluate mammography screening outcomes in Korea over 12 years and investigate regional variations. Materials and Methods: We analyzed mammography data from 42 million Korean women, aged 40 years and older, who participated in the Korean National Cancer Screening Program (KNCSP) from 2009 to 2020. Performance metrics—including recall rate (RR), positive predictive value (PPV), sensitivity, specificity, false positive rate (FPR), cancer detection rate (CDR), interval cancer rate (ICR), and dense breast rate (DBR), were computed. Twelve-year trends in these metrics were analyzed using Joinpoint regression. Regional variations were also examined across Korea’s 237 districts, stratified by age groups. Results: From 2009 to 2020, 42165405 mammography screenings were conducted through the KNCSP, increasing from 2821132 screenings in 2009 to 3596204 in 2020. The RR decreased from 17.2% in 2009 to 11.2% in 2020 (average annual percent change [AAPC] = -3.7%), while the PPV increased from 0.8% to 2.8%; AAPC = 10.7%), the CDR increased from 1.5 to 3.1 per 1000; AAPC = 7.3%), and the ICR rose from 0.9 to 1.6 per 1000; (AAPC = 5.2%). Regional variations were noted; however, differences in the RR, sensitivity, specificity, and FPR decreased over time. Conclusion While mammography performance improved from 2009 to 2020, the PPV and sensitivity remain suboptimal, underscoring the need for continuous monitoring. Regional disparities in performance, although reduced, persist. These findings provide essential baseline data for improving mammography quality and addressing inequities in breast cancer screening.

Objective: Mammography is essential for reducing breast cancer mortality; however, its performance varies globally. This study aimed to evaluate mammography screening outcomes in Korea over 12 years and investigate regional variations. Materials and Methods: We analyzed mammography data from 42 million Korean women, aged 40 years and older, who participated in the Korean National Cancer Screening Program (KNCSP) from 2009 to 2020. Performance metrics—including recall rate (RR), positive predictive value (PPV), sensitivity, specificity, false positive rate (FPR), cancer detection rate (CDR), interval cancer rate (ICR), and dense breast rate (DBR), were computed. Twelve-year trends in these metrics were analyzed using Joinpoint regression. Regional variations were also examined across Korea’s 237 districts, stratified by age groups. Results: From 2009 to 2020, 42165405 mammography screenings were conducted through the KNCSP, increasing from 2821132 screenings in 2009 to 3596204 in 2020. The RR decreased from 17.2% in 2009 to 11.2% in 2020 (average annual percent change [AAPC] = -3.7%), while the PPV increased from 0.8% to 2.8%; AAPC = 10.7%), the CDR increased from 1.5 to 3.1 per 1000; AAPC = 7.3%), and the ICR rose from 0.9 to 1.6 per 1000; (AAPC = 5.2%). Regional variations were noted; however, differences in the RR, sensitivity, specificity, and FPR decreased over time. Conclusion While mammography performance improved from 2009 to 2020, the PPV and sensitivity remain suboptimal, underscoring the need for continuous monitoring. Regional disparities in performance, although reduced, persist. These findings provide essential baseline data for improving mammography quality and addressing inequities in breast cancer screening.

Objective: Mammography is essential for reducing breast cancer mortality; however, its performance varies globally. This study aimed to evaluate mammography screening outcomes in Korea over 12 years and investigate regional variations. Materials and Methods: We analyzed mammography data from 42 million Korean women, aged 40 years and older, who participated in the Korean National Cancer Screening Program (KNCSP) from 2009 to 2020. Performance metrics—including recall rate (RR), positive predictive value (PPV), sensitivity, specificity, false positive rate (FPR), cancer detection rate (CDR), interval cancer rate (ICR), and dense breast rate (DBR), were computed. Twelve-year trends in these metrics were analyzed using Joinpoint regression. Regional variations were also examined across Korea’s 237 districts, stratified by age groups. Results: From 2009 to 2020, 42165405 mammography screenings were conducted through the KNCSP, increasing from 2821132 screenings in 2009 to 3596204 in 2020. The RR decreased from 17.2% in 2009 to 11.2% in 2020 (average annual percent change [AAPC] = -3.7%), while the PPV increased from 0.8% to 2.8%; AAPC = 10.7%), the CDR increased from 1.5 to 3.1 per 1000; AAPC = 7.3%), and the ICR rose from 0.9 to 1.6 per 1000; (AAPC = 5.2%). Regional variations were noted; however, differences in the RR, sensitivity, specificity, and FPR decreased over time. Conclusion While mammography performance improved from 2009 to 2020, the PPV and sensitivity remain suboptimal, underscoring the need for continuous monitoring. Regional disparities in performance, although reduced, persist. These findings provide essential baseline data for improving mammography quality and addressing inequities in breast cancer screening.

Objective: Mammography is essential for reducing breast cancer mortality; however, its performance varies globally. This study aimed to evaluate mammography screening outcomes in Korea over 12 years and investigate regional variations. Materials and Methods: We analyzed mammography data from 42 million Korean women, aged 40 years and older, who participated in the Korean National Cancer Screening Program (KNCSP) from 2009 to 2020. Performance metrics—including recall rate (RR), positive predictive value (PPV), sensitivity, specificity, false positive rate (FPR), cancer detection rate (CDR), interval cancer rate (ICR), and dense breast rate (DBR), were computed. Twelve-year trends in these metrics were analyzed using Joinpoint regression. Regional variations were also examined across Korea’s 237 districts, stratified by age groups. Results: From 2009 to 2020, 42165405 mammography screenings were conducted through the KNCSP, increasing from 2821132 screenings in 2009 to 3596204 in 2020. The RR decreased from 17.2% in 2009 to 11.2% in 2020 (average annual percent change [AAPC] = -3.7%), while the PPV increased from 0.8% to 2.8%; AAPC = 10.7%), the CDR increased from 1.5 to 3.1 per 1000; AAPC = 7.3%), and the ICR rose from 0.9 to 1.6 per 1000; (AAPC = 5.2%). Regional variations were noted; however, differences in the RR, sensitivity, specificity, and FPR decreased over time. Conclusion While mammography performance improved from 2009 to 2020, the PPV and sensitivity remain suboptimal, underscoring the need for continuous monitoring. Regional disparities in performance, although reduced, persist. These findings provide essential baseline data for improving mammography quality and addressing inequities in breast cancer screening.

PURPOSE: Primary central nervous system lymphoma (PCNSL) is defined as lymphoma limited to the cranial-spinal axis without evidence of systemic disease and its incidence has risen threefold during the last fifteen years among apparantly healthy population. This study was intended to analyze the clinicopathologic features and treatment outcome of the patient with PCNSL. MATERIALS AND METHODS: Twenty one patients were diagnosed and treated for the PCNSL limited to brain parenchyme at Asan Medical Center between March 1989 and December 1996. We reviewed clinical records of these patients and analyzed clinicopathologic features, treatment response, survival time and prognostic factors. RESULTS: The ratio of male to female was 1.3: 1 and the most prevalent age group was the 4th decade. Most patients had diffuse large cell (19/21) and B-cell type (8/8). Seventeen (94.4%) among 18 evaluable patients achieved complete remission (CR) as initial response, but 53% of patients showed recurence of the disease. Median times of disease-free and overall survival were 40 and 50 months, respectively and 5 year overall survival rate was 35.3 %. Prognostic factors such as age and performance status, had a statistically significant influence on the overall survival but not on disease-free survival. CONCLUSION: CR rate of the patients with PCNSL was high, but relapses were frequent. There fore further studies are needed to define the pmgnostic factors and to decrease relapse rate.
Axis, Cervical Vertebra ; B-Lymphocytes ; Brain ; Central Nervous System* ; Chungcheongnam-do ; Disease-Free Survival ; Female ; Humans ; Incidence ; Lymphoma* ; Male ; Recurrence ; Survival Rate ; Treatment Outcome