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1,279 results on '"Kim, Jin‐Woong"'

10. Pictorial Review of Rare Pancreatic Tumors and Tumor-like Lesions: Radiologic–Pathologic Correlation.

Author

Hong, Jun Hyung, Kim, Jin Woong, Yoon, Eun Ju, Song, Sang Gook, Kim, Hyun Chul, Hur, Young Hoe, and Kim, Hyung Joong

Subjects
MUCINOUS adenocarcinoma, DIAGNOSTIC imaging, DIFFERENTIAL diagnosis, PROGNOSIS, TUMORS, PANCREATIC tumors, HAMARTOMA
Abstract

Rare pancreatic tumors and non-neoplastic tumor-like lesions present a diagnostic challenge due to their uncommon occurrence and overlapping imaging characteristics with more prevalent pancreatic neoplasms. Advances in imaging technologies and diagnostic criteria have contributed to increased detection of these rare entities in clinical practice. This pictorial review focuses on the radiologic–pathologic correlation of rare pancreatic tumors, including colloid carcinoma, acinar cell carcinoma, pancreatoblastoma, primary pancreatic lymphoma, and non-neoplastic tumor-like lesions such as hamartomas and inflammatory pseudotumors. Detailed imaging features, such as signal intensities on MRI and enhancement patterns on CT, are correlated with pathological findings to assist in the differential diagnosis. Familiarity with these characteristics is crucial for radiologists to ensure accurate diagnosis and guide appropriate treatment strategies, as management and prognosis significantly differ from common pancreatic neoplasms. [ABSTRACT FROM AUTHOR]

Published
2024
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24. Artificial Octopus-Limb-Like Adhesive Patches for Cupping-Driven Transdermal Delivery with Nanoscale Control of Stratum Corneum

Author

Lee, Jihyun, primary, Hwang, Gui Won, additional, Lee, Bum Soo, additional, Park, No-June, additional, Kim, Su-Nam, additional, Lim, Dohyun, additional, Kim, Da Wan, additional, Lee, Yeon Soo, additional, Park, Hyoung-Ki, additional, Kim, Seulgi, additional, Kim, Jin Woong, additional, Yi, Gi-Ra, additional, Kim, Ki Hyun, additional, and Pang, Changhyun, additional

Published
2024
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27. Direct Observation of Wet Biological Samples by Graphene Liquid Cell Transmission Electron Microscopy

Author

Park, Jungwon, Park, Hyesung, Ercius, Peter, Pegoraro, Adrian F, Xu, Chen, Kim, Jin Woong, Han, Sang Hoon, and Weitz, David A

Subjects
Physical Sciences, Condensed Matter Physics, Biotechnology, Animals, Cell Line, Dogs, Epithelial Cells, Equipment Design, Graphite, Humans, Influenza A Virus, H3N2 Subtype, Influenza, Human, Madin Darby Canine Kidney Cells, Microscopy, Electron, Transmission, Solutions, Liquid phase TEM, graphene liquid cell, multilayer graphene, bioimaging, influenza viruses, epithelial cells, Nanoscience & Nanotechnology
Abstract

Recent development of liquid phase transmission electron microscopy (TEM) enables the study of specimens in wet ambient conditions within a liquid cell; however, direct structural observation of biological samples in their native solution using TEM is challenging since low-mass biomaterials embedded in a thick liquid layer of the host cell demonstrate low contrast. Furthermore, the integrity of delicate wet samples is easily compromised during typical sample preparation and TEM imaging. To overcome these limitations, we introduce a graphene liquid cell (GLC) using multilayer graphene sheets to reliably encapsulate and preserve biological samples in a liquid for TEM observation. We achieve nanometer scale spatial resolution with high contrast using low-dose TEM at room temperature, and we use the GLC to directly observe the structure of influenza viruses in their native buffer solution at room temperature. The GLC is further extended to investigate whole cells in wet conditions using TEM. We also demonstrate the potential of the GLC for correlative studies by TEM and fluorescence light microscopy imaging.

Published
2015

33. Comprehensive CT Imaging Analysis of Primary Colorectal Squamous Cell Carcinoma: A Retrospective Study.

Author

Yoon, Eun Ju, Song, Sang Gook, Kim, Jin Woong, Kim, Hyun Chul, Kim, Hyung Joong, Hur, Young Hoe, and Hong, Jun Hyung

Subjects
SQUAMOUS cell carcinoma, IMAGE analysis, SIGMOID colon, COLORECTAL cancer, SYMPTOMS, LYMPH nodes
Abstract

The aim of this study was to evaluate the findings of CT scans in patients with pathologically confirmed primary colorectal squamous-cell carcinoma (SCC). The clinical presentation and CT findings in eight patients with pathologically confirmed primary colorectal squamous-cell carcinoma were retrospectively reviewed by two gastrointestinal radiologists. Hematochezia was the most common symptom (n = 5). The tumors were located in the rectum (n = 7) and sigmoid colon (n = 1). The tumors showed circumferential wall thickening (n = 4), bulky mass (n = 3), or eccentric wall thickening (n = 1). The mean maximal wall thickness of the involved segment was 29.1 mm ± 13.4 mm. The degree of tumoral enhancement observed via CT was well enhanced (n = 4) or moderately enhanced (n = 4). Necrosis within the tumor was found in five patients. The mean total number of metastatic lymph nodes was 3.1 ± 3.3, and the mean short diameter of the largest metastatic lymph node was 16.6 ± 5.7 mm. Necrosis within the metastatic node was observed in six patients. Invasions to adjacent organs were identified in five patients (62.5%). Distant metastasis was detected in only one patient. In summary, primary SCCs that arise from the colorectum commonly present as marked invasive wall thickening or a bulky mass with heterogeneous well-defined enhancement, internal necrosis, and large metastatic lymphadenopathies. [ABSTRACT FROM AUTHOR]

Published
2024
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