1.Imaging Patterns of Bacillus Calmette–Guérin-Related Granulomatous Prostatitis Based on Multiparametric MRI
Seungsoo LEE ; Young Taik OH ; Hye Min KIM ; Dae Chul JUNG ; Hyesuk HONG
Korean Journal of Radiology 2022;23(1):60-67
Objective:
To categorize multiparametric MRI features of Bacillus Calmette–Guérin (BCG)-related granulomatous prostatitis (GP) and discover potential manifestations for its differential diagnosis from prostate cancer.
Materials and Methods:
The cases of BCG-related GP in 24 male (mean age ± standard deviation, 66.0 ± 9.4 years; range, 50–88 years) pathologically confirmed between January 2011 and April 2019 were retrospectively reviewed. All patients underwent intravesical BCG therapy followed by a MRI scan. Additional follow-up MRI scans, including diffusion-weighted imaging (DWI), were performed in 19 patients. The BCG-related GP cases were categorized into three: A, B, or C. The lesions with diffusion restriction and homogeneous enhancement were classified as type A. The lesions with diffusion restriction and a poorly enhancing component were classified as type B. A low signal intensity on high b-value DWI (b = 1000 s/mm2 ) was considered characteristic of type C. Two radiologists independently interpreted the MRI scans before making a consensus about the types.
Results:
The median lesion size was 22 mm with the interquartile range (IQR) of 18–26 mm as measured using the initial MRI scans. The lesion types were A, B, and C in 7, 15, and 2 patients, respectively. Cohen’s kappa value for the inter-reader agreement for the interpretation of the lesion types was 0.837. On the last follow-up MRI scans of 19 patients, the size decreased (median, 5.8 mm; IQR, 3.4–8.5 mm), and the type changed from A or B to C in 11 patients. The lesions resolved in four patients. In five patients who underwent prostatectomy, caseous necrosis on histopathology matched with the non-enhancing components of type B lesions and the entire type C lesions.
Conclusion
BCG-related GP demonstrated three imaging patterns on multiparametric MRI. Contrast-enhanced T1-weighted imaging and DWI may play a role in its differential diagnosis from prostate cancer.
2.CT-Based Fagotti Scoring System for Non-Invasive Prediction of Cytoreduction Surgery Outcome in Patients with Advanced Ovarian Cancer
Na Young KIM ; Dae Chul JUNG ; Jung Yun LEE ; Kyung Hwa HAN ; Young Taik OH
Korean Journal of Radiology 2021;22(9):1481-1489
Objective:
To construct a CT-based Fagotti scoring system by analyzing the correlations between laparoscopic findings and CT features in patients with advanced ovarian cancer.
Materials and Methods:
This retrospective cohort study included patients diagnosed with stage III/IV ovarian cancer who underwent diagnostic laparoscopy and debulking surgery between January 2010 and June 2018. Two radiologists independently reviewed preoperative CT scans and assessed ten CT features known as predictors of suboptimal cytoreduction. Correlation analysis between ten CT features and seven laparoscopic parameters based on the Fagotti scoring system was performed using Spearman’s correlation. Variable selection and model construction were performed by logistic regression with the least absolute shrinkage and selection operator method using a predictive index value (PIV) ≥ 8 as an indicator of suboptimal cytoreduction. The final CT-based scoring system was internally validated using 5-fold cross-validation.
Results:
A total of 157 patients (median age, 56 years; range, 27–79 years) were evaluated. Among 120 (76.4%) patients with a PIV ≥ 8, 105 patients received neoadjuvant chemotherapy followed by interval debulking surgery, and the optimal cytoreduction rate was 90.5% (95 of 105). Among 37 (23.6%) patients with PIV < 8, 29 patients underwent primary debulking surgery, and the optimal cytoreduction rate was 93.1% (27 of 29). CT features showing significant correlations with PIV ≥ 8 were mesenteric involvement, gastro-transverse mesocolon-splenic space involvement, diaphragmatic involvement, and para-aortic lymphadenopathy. The area under the receiver operating curve of the final model for prediction of PIV ≥ 8 was 0.72 (95% confidence interval: 0.62–0.82).
Conclusion
Central tumor burden and upper abdominal spread features on preoperative CT were identified as distinct predictive factors for high PIV on diagnostic laparoscopy. The CT-based PIV prediction model might be useful for patient stratification before cytoreduction surgery for advanced ovarian cancer.
3.CT-Based Fagotti Scoring System for Non-Invasive Prediction of Cytoreduction Surgery Outcome in Patients with Advanced Ovarian Cancer
Na Young KIM ; Dae Chul JUNG ; Jung Yun LEE ; Kyung Hwa HAN ; Young Taik OH
Korean Journal of Radiology 2021;22(9):1481-1489
Objective:
To construct a CT-based Fagotti scoring system by analyzing the correlations between laparoscopic findings and CT features in patients with advanced ovarian cancer.
Materials and Methods:
This retrospective cohort study included patients diagnosed with stage III/IV ovarian cancer who underwent diagnostic laparoscopy and debulking surgery between January 2010 and June 2018. Two radiologists independently reviewed preoperative CT scans and assessed ten CT features known as predictors of suboptimal cytoreduction. Correlation analysis between ten CT features and seven laparoscopic parameters based on the Fagotti scoring system was performed using Spearman’s correlation. Variable selection and model construction were performed by logistic regression with the least absolute shrinkage and selection operator method using a predictive index value (PIV) ≥ 8 as an indicator of suboptimal cytoreduction. The final CT-based scoring system was internally validated using 5-fold cross-validation.
Results:
A total of 157 patients (median age, 56 years; range, 27–79 years) were evaluated. Among 120 (76.4%) patients with a PIV ≥ 8, 105 patients received neoadjuvant chemotherapy followed by interval debulking surgery, and the optimal cytoreduction rate was 90.5% (95 of 105). Among 37 (23.6%) patients with PIV < 8, 29 patients underwent primary debulking surgery, and the optimal cytoreduction rate was 93.1% (27 of 29). CT features showing significant correlations with PIV ≥ 8 were mesenteric involvement, gastro-transverse mesocolon-splenic space involvement, diaphragmatic involvement, and para-aortic lymphadenopathy. The area under the receiver operating curve of the final model for prediction of PIV ≥ 8 was 0.72 (95% confidence interval: 0.62–0.82).
Conclusion
Central tumor burden and upper abdominal spread features on preoperative CT were identified as distinct predictive factors for high PIV on diagnostic laparoscopy. The CT-based PIV prediction model might be useful for patient stratification before cytoreduction surgery for advanced ovarian cancer.
4.Clinical Practice Guideline for Care in the Last Days of Life
Jinyoung SHIN ; Yoon Jung CHANG ; So-Jung PARK ; Jin Young CHOI ; Sun-Hyun KIM ; Youn Seon CHOI ; Nam Hee KIM ; Ho-Kee YUM ; Eun Mi NAM ; Myung Hee PARK ; Nayeon MOON ; Jee Youn MOON ; Hee-Taik KANG ; Jung Hun KANG ; Jae-Min PARK ; Chung-Woo LEE ; Seon-Young KIM ; Eun Jeong LEE ; Su-Jin KOH ; Yonghwan KIM ; Myongjin AGNES CHO ; Youhyun SONG ; Jae Yong SHIM
Korean Journal of Hospice and Palliative Care 2020;23(3):103-113
A clinical practice guideline for patients in the dying process in general wards and their families, developed through an evidence-based process, is presented herein. The purpose of this guideline is to enable a peaceful death based on an understanding of suitable management of patients’ physical and mental symptoms, psychological support, appropriate deci-sion-making, family care, and clearly-defined team roles. Although there are limits to the available evidence regarding medical issues in patients facing death, the final recommendations were determined from expert advice and feedback, considering values and preferences related to medical treatment, benefits and harms, and applicability in the real world. This guideline should be applied in a way that takes into account specific health care environments, including the resources of medical staff and differences in the available resources of each institution. This guideline can be used by all medical institutions in South Korea.
5.Immunoglobulin G4-Related Disease of the Ovary Mimicking Bilateral Ovarian Malignancies
Yongsik SIM ; Taek CHUNG ; Dae Chul JUNG ; Hyun-Soo KIM ; Young Taik OH
Journal of the Korean Radiological Society 2020;81(4):996-1002
Immunoglobulin G4-related disease (IgG4-RD) is a fibro-inflammatory condition characterized by several pathological features that can theoretically involve all organs. Ovarian involvement in IgG4-RD has been reported by two studies only. Herein, we report a pathologically confirmed case of ovarian involvement of IgG4-RD, which mimicked bilateral ovarian malignancies on computed tomography and magnetic resonance imaging.
7.Cardiac Dysfunction in Association with Increased Inflammatory Markers in Primary Aldosteronism.
Jung Soo LIM ; Sungha PARK ; Sung Il PARK ; Young Taik OH ; Eunhee CHOI ; Jang Young KIM ; Yumie RHEE
Endocrinology and Metabolism 2016;31(4):567-576
BACKGROUND: Oxidative stress in primary aldosteronism (PA) is thought to worsen aldosterone-induced damage by activating proinflammatory processes. Therefore, we investigated whether inflammatory markers associated with oxidative stress is increased with negative impacts on heart function as evaluated by echocardiography in patients with PA. METHODS: Thirty-two subjects (mean age, 50.3±11.0 years; 14 males, 18 females) whose aldosterone-renin ratio was more than 30 among patients who visited Severance Hospital since 2010 were enrolled. Interleukin-1β (IL-1β), IL-6, IL-8, monocyte chemoattractant protein 1, tumor necrosis factor α (TNF-α), and matrix metalloproteinase 2 (MMP-2), and MMP-9 were measured. All patients underwent adrenal venous sampling with complete access to both adrenal veins. RESULTS: Only MMP-2 level was significantly higher in the aldosterone-producing adenoma (APA) group than in the bilateral adrenal hyperplasia (BAH). Patients with APA had significantly higher left ventricular (LV) mass and A velocity, compared to those with BAH. IL-1β was positively correlated with left atrial volume index. Both TNF-α and MMP-2 also had positive linear correlation with A velocity. Furthermore, MMP-9 showed a positive correlation with LV mass, whereas it was negatively correlated with LV end-systolic diameter. CONCLUSION: These results suggest the possibility that some of inflammatory markers related to oxidative stress may be involved in developing diastolic dysfunction accompanied by LV hypertrophy in PA. Further investigations are needed to clarify the role of oxidative stress in the course of cardiac remodeling.
Adenoma
;
Chemokine CCL2
;
Cytokines
;
Echocardiography
;
Heart
;
Heart Diseases
;
Humans
;
Hyperaldosteronism*
;
Hyperplasia
;
Hypertrophy
;
Interleukin-6
;
Interleukin-8
;
Male
;
Matrix Metalloproteinase 2
;
Oxidative Stress
;
Tumor Necrosis Factor-alpha
;
Veins
8.Management of long-term colorectal cancer survivors in Korea.
Hee Taik KANG ; Hyun Jung BAHK ; Jae Yong SHIM ; Nam Kyu KIM
Journal of the Korean Medical Association 2016;59(4):276-286
Colorectal cancer (CRC) is the third most common cancer in Korea. Its average growth rate has been 3.7% annually from 1999 to 2013. The 5-year relative survival rate is 75.6%. The number of CRC survivors is expected to increase steadily because of its high incidence and survival rate. Because CRC survivors are at risk for recurrence, metachronous cancer, and other cancers, they should be checked regularly. Recommended surveillance includes history-taking and physical examination, colonoscopy, carcinoembryonic antigen testing, and computed tomography. Routine complete blood counts, liver function test, and positron emission tomography are not recommended. CRC survival, which is associated with Lynch syndrome and familial adenomatous polyposis, is also related to a higher risk of other cancers such as gastrointestinal and gynecologic cancers. Additional surveillance should be taken. CRC survivors could complain of general health problems such as cancer-related fatigue and psychosocial/cognitive dysfunction, in addition to treatment-related problems including bowel/urologic/sexual dysfunction, peripheral neuropathy, and ostomy care. They are also at greater risk of cardiovascular diseases. The primary care physician should counsel CRC survivors about their health problems and make an effort to address these concerns. Primary care physicians should try to communicate with CRC survivors and all specialists for clinical follow-up care.
Adenomatous Polyposis Coli
;
Blood Cell Count
;
Carcinoembryonic Antigen
;
Cardiovascular Diseases
;
Colonoscopy
;
Colorectal Neoplasms*
;
Colorectal Neoplasms, Hereditary Nonpolyposis
;
Fatigue
;
Follow-Up Studies
;
Humans
;
Incidence
;
Korea*
;
Liver Function Tests
;
Ostomy
;
Peripheral Nervous System Diseases
;
Physical Examination
;
Physicians, Primary Care
;
Positron-Emission Tomography
;
Recurrence
;
Specialization
;
Survival Rate
;
Survivors*
9.A Pilot Study Evaluating Steroid-Induced Diabetes after Antiemetic Dexamethasone Therapy in Chemotherapy-Treated Cancer Patients.
Yusook JEONG ; Hye Sook HAN ; Hyo Duk LEE ; Jiyoul YANG ; Jiwon JEONG ; Moon Ki CHOI ; Jihyun KWON ; Hyun Jung JEON ; Tae Keun OH ; Ki Hyeong LEE ; Seung Taik KIM
Cancer Research and Treatment 2016;48(4):1429-1437
PURPOSE: Dexamethasone is a mainstay antiemetic regimen for the prevention of chemotherapy-induced nausea and vomiting. The aim of this pilot study was to assess the incidence of and factors associated with steroid-induced diabetes in cancer patients receiving chemotherapy with dexamethasone as an antiemetic. MATERIALS AND METHODS: Non-diabetic patients with newly diagnosed gastrointestinal cancer who received at least three cycles of highly or moderately emetogenic chemotherapy with dexamethasone as an antiemetic were enrolled. Fasting plasma glucose levels, 2-hour postprandial glucose levels, and hemoglobin A1C tests for the diagnosis of diabetes were performed before chemotherapy and at 3 and 6 months after the start of chemotherapy. The homeostasis model assessment of insulin resistance (HOMA-IR) was used as an index for measurement of insulin resistance, defined as a HOMA-IR ≥ 2.5. RESULTS: Between January 2012 and November 2013, 101 patients with no history of diabetes underwent laboratory tests for assessment of eligibility; 77 of these patients were included in the analysis. Forty-five patients (58.4%) were insulin resistant and 17 (22.1%) developed steroid-induced diabetes at 3 or 6 months after the first chemotherapy, which included dexamethasone as an antiemetic. Multivariate analysis showed significant association of the incidence of steroid-induced diabetes with the cumulative dose of dexamethasone (p=0.049). CONCLUSION: We suggest that development of steroid-induced diabetes after antiemetic dexamethasone therapy occurs in approximately 20% of non-diabetic cancer patients; this is particularly significant for patients receiving high doses of dexamethasone.
Antiemetics
;
Blood Glucose
;
Dexamethasone*
;
Diabetes Mellitus
;
Diagnosis
;
Drug Therapy
;
Fasting
;
Gastrointestinal Neoplasms
;
Glucose
;
Homeostasis
;
Humans
;
Incidence
;
Insulin
;
Insulin Resistance
;
Multivariate Analysis
;
Nausea
;
Pilot Projects*
;
Vomiting
10.Comparative Study of Cryostripping and Endovenous Laser Therapy for Varicose Veins: Mid-Term Results.
Kwang Hyoung LEE ; Jae Ho CHUNG ; Kwang Taik KIM ; Sung Ho LEE ; Ho Sung SON ; Jae Seung JUNG ; Hee Jung KIM ; Seung Hun LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 2015;48(5):345-350
BACKGROUND: Conventional stripping is considered to be the standard procedure for great saphenous vein (GSV) varicosities, but many other alternative treatments such as cryostripping, endovenous laser therapy (EVLT), radio-frequency ablation, and ultrasound-guided foam sclerotherapy have been developed. Among them, both cryostripping and laser therapy have been reported to be less traumatic, with lower rates of complications and recurrences when compared to conventional stripping. To compare the efficacy of these treatments, we have analyzed and compared the mid-term clinical outcomes of cryostripping and EVLT. METHODS: Patients diagnosed with varicose veins of the GSV and treated with cryostripping or laser therapy between September 2008 and April 2013 were enrolled in this study. Duplex ultrasonography was used for the diagnosis and evaluation of varicosity and reflux, and the clinical-etiology-anatomy-pathophysiology classification was used to measure the clinical severity. The symptoms, Venous Clinical Severity Score (VCSS), recurrence rates, and complication rates of the cryostripping and laser therapy groups were analyzed and compared. RESULTS: A total of 68 patients were enrolled in this study. 32 patients were treated with cryostripping, and 36 patients were treated with laser therapy. The median follow-up period was 29.6 months. Recurrence was noted in three patients from the cryostripping group and in two patients from the EVLT group. There was no difference in the VCSS score, operative time, duration of hospital stay, and complication rate between the cryostripping group and the EVLT group. CONCLUSION: The mid-term clinical outcomes of cryostripping were not inferior to those of EVLT. Further, considering its cost-effectiveness, cryostripping seems to be a safe and feasible method for the treatment of varicose veins.
Classification
;
Diagnosis
;
Follow-Up Studies
;
Humans
;
Laser Therapy*
;
Length of Stay
;
Operative Time
;
Recurrence
;
Saphenous Vein
;
Sclerotherapy
;
Ultrasonography
;
Varicose Veins*

Result Analysis
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