{"title":"[Preface for Imaging of Neurodegenerative Diseases: Current Status and Recent Updates].","authors":"Won-Jin Moon","doi":"10.3348/jksr.2022.0074","DOIUrl":"https://doi.org/10.3348/jksr.2022.0074","url":null,"abstract":"","PeriodicalId":74904,"journal":{"name":"Taehan Yongsang Uihakhoe chi","volume":"83 3","pages":"451-452"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/51/d2/jksr-83-451.PMC9514530.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10470328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Rare Angioleiomyoma of the Uterine Cervix: A Case Report with Peculiar MRI Findings.","authors":"Yun Chul Hwang, Seo Young Park","doi":"10.3348/jksr.2021.0127","DOIUrl":"https://doi.org/10.3348/jksr.2021.0127","url":null,"abstract":"<p><p>Angioleiomyoma (vascular leiomyoma) of the uterine cervix is an extremely rare type of benign tumor composed of smooth muscle cells and thick-walled blood vessels. Only a few cases of cervical angioleiomyoma have been reported. Here, we present imaging, including ultrasonography, contrast-enhanced CT, MRI, and histopathological findings of a 38-year-old female with an angioleiomyoma of the uterine cervix.</p>","PeriodicalId":74904,"journal":{"name":"Taehan Yongsang Uihakhoe chi","volume":" ","pages":"693-698"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/6f/e8/jksr-83-693.PMC9514527.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33510150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hye Jin Yoo, Kyung Nam Ryu, Ji Seon Park, Wook Jin, So Young Park, Hye Jin Kang, Hyun Soo Kim, Gene Hyuk Kwon
{"title":"Preoperative Meniscus: Pitfalls and Traps to Avoid.","authors":"Hye Jin Yoo, Kyung Nam Ryu, Ji Seon Park, Wook Jin, So Young Park, Hye Jin Kang, Hyun Soo Kim, Gene Hyuk Kwon","doi":"10.3348/jksr.2021.0002","DOIUrl":"https://doi.org/10.3348/jksr.2021.0002","url":null,"abstract":"<p><p>To accurately interpret knee MRI, it is important not only to know the basic meniscal anatomy but also to distinguish it from that under pathological conditions. Thus, it would be helpful to know the normal meniscus variants (false positives) that could be mistaken for meniscal tears, and tears that could easily be missed and incorrectly diagnosed as normal (false negatives). False positives include synovial recesses, meniscal flounce, the relationship between the popliteus tendon and lateral meniscus, transverse ligament, the anterior root of the meniscus, and meniscofemoral ligament. False negatives include focal radial tears, flap tears, posterior root tears, meniscocapsular separation, and discoid meniscal tears. In this pictorial essay, we reviewed the imaging data obtained in the aforementioned cases.</p>","PeriodicalId":74904,"journal":{"name":"Taehan Yongsang Uihakhoe chi","volume":" ","pages":"582-596"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/00/c4/jksr-83-582.PMC9514523.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33510172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyuk Kwon, Jandee Lee, Soon Won Hong, Hyeong Ju Kwon, Jin Young Kwak, Jung Hyun Yoon
{"title":"Fine Needle Aspiration Cytology vs. Core Needle Biopsy for Thyroid Nodules: A Prospective, Experimental Study Using Surgical Specimen.","authors":"Hyuk Kwon, Jandee Lee, Soon Won Hong, Hyeong Ju Kwon, Jin Young Kwak, Jung Hyun Yoon","doi":"10.3348/jksr.2021.0125","DOIUrl":"https://doi.org/10.3348/jksr.2021.0125","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate and compare the diagnostic outcomes of ultrasonography (US)-guided fine needle aspiration (FNA) and core needle biopsy (CNB) performed on the same thyroid nodule using a surgical specimen for direct comparison.</p><p><strong>Materials and methods: </strong>We included 89 thyroid nodules from 88 patients from February 2015 to January 2016. The inclusion criterion was thyroid nodules measuring ≥ 20 mm (mean size: 40.0 ± 15.3 mm). Immediately after surgical resection, FNA and subsequent CNB were performed on the surgical specimen under US guidance. FNA and CNB cytopathologic results on the specimen were compared with the surgical diagnosis.</p><p><strong>Results: </strong>Among the 89 nodules, 30 were malignant and 59 were benign. Significantly higher inconclusive rates were seen in FNA for malignant than benign nodules (80.0% vs. 39.0%, <i>p</i> < 0.001). For CNB, conclusive and inconclusive rates did not differ between benign and malignant nodules (<i>p</i> = 0.796). Higher inconclusive rates were seen for FNA among cancers regardless of US features, and in the subgroup of size ≥ 40 mm (62.5% vs. 22.9%, <i>p</i> = 0.028). Eleven cancers were diagnosed with CNB (36.7%, 11/30), while none was diagnosed using FNA.</p><p><strong>Conclusion: </strong>In this experimental study using surgical specimens, CNB showed a potential to provide improved diagnostic sensitivity for thyroid cancer, especially when a conclusive diagnosis is limited with FNA.</p>","PeriodicalId":74904,"journal":{"name":"Taehan Yongsang Uihakhoe chi","volume":" ","pages":"645-657"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/94/7f/jksr-83-645.PMC9514511.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33510173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jung In Jo, Chang-Woo Ryu, Hak Cheol Ko, Hee Sup Shin
{"title":"Direct Cannulation of a Calvarial Diploic Vein for Embolization of a Symptomatic Intraosseous Arteriovenous Fistula: A Case Report.","authors":"Jung In Jo, Chang-Woo Ryu, Hak Cheol Ko, Hee Sup Shin","doi":"10.3348/jksr.2021.0088","DOIUrl":"https://doi.org/10.3348/jksr.2021.0088","url":null,"abstract":"<p><p>Diploic arteriovenous fistulas (AVFs) or intraosseous dural AVFs are rare arteriovenous shunts. A diploic AVF is formed between a meningeal artery and an intraosseous diploic vein or the transosseous emissary vein, and the nidus is located exclusively within the bone. Currently, endovascular embolization with a transvenous approach is considered the treatment of choice for most dural AVFs. However, in the absence of an accessible venous channel, an alternate treatment approach should be considered. Herein, we report a case of a diploic AVF that was treated using embolization with transosseous direct cannulation.</p>","PeriodicalId":74904,"journal":{"name":"Taehan Yongsang Uihakhoe chi","volume":" ","pages":"712-718"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/d5/a1/jksr-83-712.PMC9514518.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33510176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ga Young Yi, Jeong Kyong Lee, Huisong Lee, Sun Young Yi, SangHui Park
{"title":"Imaging Findings of an Intraluminal Duodenal Diverticulum Associated with Adult Duodeno-Duodenal Intussusception and Recurrent Pancreatitis: A Case Report.","authors":"Ga Young Yi, Jeong Kyong Lee, Huisong Lee, Sun Young Yi, SangHui Park","doi":"10.3348/jksr.2021.0041","DOIUrl":"https://doi.org/10.3348/jksr.2021.0041","url":null,"abstract":"<p><p>Intraluminal duodenal diverticulum (IDD) is a rare congenital abnormality, consisting of a sac-like mucosal lesion in the duodenum. Cases of IDD can present with gastrointestinal bleeding, duodenal obstruction, or pancreatitis. Here, we report a rare case of a 25-year-old female presenting with IDD complicated by duodeno-duodenal intussusception and recurrent pancreatitis. The diagnosis was based on findings from radiologic examinations (CT and MRI), upper gastrointestinal series (barium swallow), and gastroduodenofiberscopy. Laparoscopic excision of the presumed duodenal duplication was performed. The subsequent histopathologic evaluation of the excised sac revealed normal mucosa on both sides, but the absence of a proper muscle layer confirmed the diagnosis of IDD. Radiologic detection of a saccular structure in the second portion of the duodenum can indicate IDD with duodeno-duodenal intussusception as the lead point.</p>","PeriodicalId":74904,"journal":{"name":"Taehan Yongsang Uihakhoe chi","volume":" ","pages":"680-686"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/8c/0d/jksr-83-680.PMC9514536.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33538259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Association between Cerebral Small Vessel and Alzheimer's Disease].","authors":"Kyung Hoon Lee, Koung Mi Kang","doi":"10.3348/jksr.2022.0041","DOIUrl":"https://doi.org/10.3348/jksr.2022.0041","url":null,"abstract":"<p><p>Cerebral small vessel disease (CSVD) includes vascular lesions detected on brain MRI, such as white matter hyperintensities, lacunar infarctions, microbleeds, or enlarged perivascular spaces. There is accumulating evidence that vascular changes may play an important role in development of Alzheimer's disease (AD), and CSVD lesions detected on brain MRI were reported to be associated with β-amyloid and tau proteins accumulation. As the vascular contribution has therapeutic potential, it is important to understand the association of CSVD with AD and AD biomarkers. This review begins with a brief introduction of AD and AD biomarkers, explains the association between AD and vascular changes, and then details the pathogenesis and MR imaging findings of CSVD. Afterwards, we discuss the association of CSVD with AD and AD biomarkers.</p>","PeriodicalId":74904,"journal":{"name":"Taehan Yongsang Uihakhoe chi","volume":" ","pages":"486-507"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/51/82/jksr-83-486.PMC9514514.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33538262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Minji Shin, Young Jin Heo, Donghyun Kim, Hae Woong Jeong, Jin Wook Baek, Ha Young Park
{"title":"Isolated Intracranial Rosai-Dorfman Disease Mimicking Meningioma: A Case Report.","authors":"Minji Shin, Young Jin Heo, Donghyun Kim, Hae Woong Jeong, Jin Wook Baek, Ha Young Park","doi":"10.3348/jksr.2021.0121","DOIUrl":"https://doi.org/10.3348/jksr.2021.0121","url":null,"abstract":"<p><p>Rosai-Dorfman Disease (RDD) is a rare lymphoproliferative disease, and the occurrence of isolated intracranial RDD is extremely rare. Most cases of intracranial RDDs present as dural masses showing homogenous enhancement on MRI, which makes it difficult to differentiate these masses from meningiomas before surgery unless massive cervical lymphadenopathy is observed. We herein report a rare case of isolated intracranial RDD in a 65-year-old male. Brain MRI revealed a well-defined enhancing mass-like lesion involving the right frontal convexity and subtle diffusion restriction. However, only a subtle blush was observed on the preoperative cerebral angiogram. Although instances of isolated intracranial RDD are rare, it should be considered as a potential differential diagnosis when a dural mass with hypovascularity is visualized on the cerebral angiogram.</p>","PeriodicalId":74904,"journal":{"name":"Taehan Yongsang Uihakhoe chi","volume":" ","pages":"719-723"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/52/d4/jksr-83-719.PMC9514521.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33510147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MRI Findings Suggestive of Metastatic Axillary Lymph Nodes in Patients with Invasive Breast Cancer.","authors":"Ka Eun Kim, Shin Young Kim, Eun Young Ko","doi":"10.3348/jksr.2021.0097","DOIUrl":"https://doi.org/10.3348/jksr.2021.0097","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to investigate the diagnostic performance of features suggestive of nodal metastasis on preoperative MRI in patients with invasive breast cancer.</p><p><strong>Materials and methods: </strong>We retrospectively reviewed the preoperative breast MRI of 192 consecutive patients with surgically proven invasive breast cancer. We analyzed MRI findings of axillary lymph nodes with regard to the size, long/short ratio, cortical thickness, shape and margin of the cortex, loss of hilum, asymmetry, signal intensity (SI) on T2-weighted images (T2WI), degree of enhancement in the early phase, and enhancement kinetics. Receiver operating characteristic (ROC) analysis, chi-square test, <i>t</i> test, and McNemar's test were used for statistical analysis.</p><p><strong>Results: </strong>Increased shorter diameter, uneven cortical shape, increased cortical thickness, loss of hilum, asymmetry, irregular cortical margin, and low SI on T2WI were significantly suggestive of metastasis. ROC analysis revealed the cutoff value for the shorter diameter and cortical thickness as 8.05 mm and 2.75 mm, respectively. Increased cortical thickness (> 2.75 mm) and uneven cortical shape showed significantly higher sensitivity than other findings in McNemar's test. Irregular cortical margins showed the highest specificity (100%).</p><p><strong>Conclusion: </strong>Cortical thickness > 2.75 mm and uneven cortical shape are more sensitive parameters than other findings, and an irregular cortical margin is the most specific parameter for predicting axillary metastasis in patients with invasive breast cancer.</p>","PeriodicalId":74904,"journal":{"name":"Taehan Yongsang Uihakhoe chi","volume":" ","pages":"620-631"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ea/a0/jksr-83-620.PMC9514532.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33510151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Intestinal Ganglioneuromatosis in a Pediatric Patient Presenting as Perforation: A Case Report and Literature Review.","authors":"Nim Lee, Hyun-Hae Cho, Min-Sun Cho","doi":"10.3348/jksr.2021.0053","DOIUrl":"https://doi.org/10.3348/jksr.2021.0053","url":null,"abstract":"<p><p>Intestinal ganglioneuromatosis is an extremely rare condition, particularly in pediatric patients, and the imaging features of the disease have been rarely reported before. Herein, we present a pediatric case of intestinal ganglioneuromatosis involving the transverse colon and splenic flexure with bowel perforation, which is a rare initial manifestation of the disease.</p>","PeriodicalId":74904,"journal":{"name":"Taehan Yongsang Uihakhoe chi","volume":" ","pages":"730-736"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/36/90/jksr-83-730.PMC9514520.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33510560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}