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Combination of Quantitative Parameters of Shear WaveElastography and Superb Microvascular Imaging toEvaluate Breast Masses

Lee EJ, Chang YW

Objective: This study aimed to evaluate the diagnostic value of combining the quantitative parameters of shear waveelastography (SWE) and superb microvascular imaging (SMI) to breast ultrasound (US) to differentiate between...
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Effects of probiotics or broccoli supplementation on Helicobacter pylori eradication with standard clarithromycin-based triple therapy

Chang YW, Park YM, Oh CH, Oh SJ, Cho JH, Kim JW, Jang JY

Background/Aims: The eradication failure rate of standard triple therapy (proton pump inhibitor, clarithromycin, and amoxicillin) for Helicobacter pylori infection has increased owing to antibiotic resistance in Korea. We assessed whether...
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Long-Term Follow-Up Ultrasonographic Findings of Intrathyroidal Thymus in Children

Chang YW, Kang HM, Lee EJ

Objective: To analyze long-term follow-up sonographic findings of intrathyroidal thymus in children. Materials and Methods: Among 1259 patients with congenital hypothyroidism under 15 years of age who underwent thyroid ultrasonography (US),...
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Clarithromycin resistance and female gender affect Helicobacter pylori eradication failure in chronic gastritis

Chang YW, Ko WJ, Oh CH, Park YM, Oh SJ, Moon JR, Cho JH, Kim JW, Jang JY

BACKGROUND/AIMS: The eradication rate of the first-line triple therapy (a proton pump inhibitor, clarithromycin, and amoxicillin) for Helicobacter pylori infection has gradually decreased in Korea. We evaluated whether clinical parameters,...
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Interobserver agreement in breast ultrasound categorization in the Mammography and Ultrasonography Study for Breast Cancer Screening Effectiveness (MUST-BE) trial: results of a preliminary study

Choi EJ, Lee EH, Kim YM, Chang YW, Lee JH, Park YM, Kim KW, Kim YJ, Jun JK, Hong S

PURPOSE: The purpose of this study was to record and evaluate interobserver agreement as quality control for the modified categorization of screening breast ultrasound developed by the Alliance for Breast...
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Interpretive Performance and Inter-Observer Agreement on Digital Mammography Test Sets

Kim SH, Lee EH, Jun JK, Kim YM, Chang YW, Lee JH, Kim HW, Choi EJ, the Alliance for Breast Cancer Screening in Korea (ABCS-K)

OBJECTIVE: To evaluate the interpretive performance and inter-observer agreement on digital mammographs among radiologists and to investigate whether radiologist characteristics affect performance and agreement. MATERIALS AND METHODS: The test sets consisted...
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Primary Pelvic Peritoneal Yolk Sac Tumor in the Post-Pubertal Female: a Case Report with Literature Review

Kim M, Lee EJ, Hwang J, Hong SS, Chang YW, Oh E, Nam BD, Choi I, Kim JS

Yolk sac tumors are rare malignant germ cell neoplasms that usually arise from the gonads. Extragonadal yolk sac tumors (EGYSTs) frequently occur in the mediastinum in post-pubertal females. EGYSTs in...
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Mesenteric Lesions with Similar or Distinctive Appearances on CT

Cha H, Hwang J, Hong SS, Lee EJ, Kim HJ, Chang YW

The mesentery is a structure comprising a double peritoneal layer that attaches the bowel to the abdominal wall. Mesenteric disease can cause various non-specific clinical symptoms in adults and is...
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Imaging Findings of Breast Metastasis from Squamous Cell Carcinoma of the Cervix: A Case Report

Shin D, Chang YW, Lee EJ, Cha H, Hong SS, Hwang JY, Jin YM

Metastasis from extramammary malignancy to the breast is rare, and metastasis of cervical cancer to the breast is quite uncommon. We report atypical sonographic findings of a rapid growing, single,...
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Extent of central lymph node dissection for papillary thyroid carcinoma in the isthmus

Chang YW, Lee HY, Kim HS, Kim HY, Lee JB, Son GS

PURPOSE: The incidence of papillary thyroid carcinoma (PTC) arising from the isthmus is low; however, these tumors have aggressive clinical and pathological features. Moreover, the existing guidelines regarding the extent...
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Ultrasonographic features of pure ductal carcinoma in situ of the breast: correlations with pathologic features and biological markers

Cha H, Chang YW, Lee EJ, Hwang JY, Kim HJ, Lee EH, Ryu JK

PURPOSE: The purpose of this study was to evaluate the ultrasonographic features of pure ductal carcinoma in situ (DCIS) of the breast and to evaluate the correlations of ultrasonographic features...
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Breast Lesions in Children and Adolescents: Diagnosis and Management

Lee EJ, Chang YW, Oh JH, Hwang J, Hong SS, Kim HJ

Pediatric breast disease is uncommon, and primary breast carcinoma in children is extremely rare. Therefore, the approach used to address breast lesions in pediatric patients differs from that in adults...
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Congenital Jejunal Diverticular Bleeding in a Young Adult

Lee JY, Jang JY, Kim MJ, Lee TI, Kim JW, Chang YW

Diverticular bleeding of the small bowel is rare and occurs primarily in adults aged more than 60 years. In younger adults, Meckel's diverticulum, a true diverticulum that congenitally occurs in...
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Significance of micrometastases in the calculation of the lymph node ratio for papillary thyroid cancer

Chang YW, Kim HS, Jung SP, Kim HY, Lee JB, Bae JW, Son GS

PURPOSE: The lymph node ratio (LNR) is an important prognostic factor in papillary thyroid carcinoma (PTC), but micrometastases in cervical lymph nodes (LNs) are not of great clinical importance. In...
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Fulminant course in a case of malignant phyllodes tumor

Chang YW, Kim HS, Kim DW, Son GS

We present the case of a 31-year-old woman with an inflammatory and ulcerative malignant phyllodes tumor in her right breast. A right modified radical mastectomy and transverse rectus abdominis myocutaneous...
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Characteristic Sonographic and Follow Up Features of Thyroid Nodules According to Childhood Age Groups

Nam BD, Chang YW, Hong SS, Hwang JY, Lim HK, Lee JH, Lee DH

PURPOSE: We analyzed the spectrum and the significance of pediatric thyroid nodules depicted on sonography and evaluated the follow-up change according to the age group. MATERIALS AND METHODS: We retrospectively reviewed...
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Non-Helicobacter pylori, Non-nonsteroidal Anti-inflammatory Drug Peptic Ulcer Disease

Chang YW

Non-Helicobacter pylori, non-NSAID peptic ulcer disease (PUD), termed idiopathic PUD, is increasing in Korea. Diagnosis is based on exclusion of common causes such as H. pylori infection, infection with other...
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Efficacy of Lactose-free Milk in Korean Adults with Lactose Intolerance

Park SH, Chang YW, Kim SJ, Lee MH, Nam JH, Oh CH, Kim JW, Jang JY, Yang JO, Yoo JA, Chung JY

BACKGROUND/AIMS: Lactose-free milk (LFM) is available for nutrient supply for those with lactose intolerance (LI). However, there are no consistent results of the efficacy of LFM in LI subjects. We...
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Guideline for Fluoroscopy of Low Gastrointestinal Tract in Pediatrics

Chang YW, Jeon TY, Lee MJ, Lim YJ, Kim JH, Yoon HK, Lim GY, Lee HJ

Although the availability of CT, MRI and endoscopy has resulted in a marked decline in fluoroscopic procedures in adult patients, fluoroscopy remains an important and frequently used procedure in pediatric...
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A Case of Simultaneous Primary Gastric and Duodenal Mucosa-Associated Lymphoid Tissue Lymphoma after Therapeutic Endoscopy

Park SH, Jang JY, Park MA, Kim H, Chang YW

Primary gastrointestinal lymphoma is the most common type of extranodal non-Hodgkin's lymphoma. Most cases are defined histologically as mucosa-associated lymphoid tissue (MALT) lymphoma, while low-grade MALT lymphoma affecting the stomach...
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