• Clinical Pain
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• v.19 no.2
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• pp.120-123
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• 2020

Rapidly destructive arthrosis is a rare syndrome characterized by narrowing of the joint space and rapid joint destruction within 6~12 months. A 62-year-old woman with anaplastic lymphoma kinase rearranged non-small-cell lung cancer presented with both knee pain and varus deformity. She was treated with crizotinib 500 mg/day for more than 2 years, with partial tumor response. Initial plain radiography showed Kellgren and Lawrence (K-L) grade 1. After 10 months, varus deformity was worsened and plain radiography aggravated to K-L grade 4 despite conservative treatment including activity modification. Diffuse synovitis with massive joint effusion and destruction of anterior cruciate ligament, medial meniscus, medial collateral ligament, and lateral collateral ligament were shown in magnetic resonance imaging. The patient was diagnosed with rapidly destructive arthrosis of knee and underwent a both total knee arthroplasty.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.25 no.5
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• pp.353-375
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• 2022

No systematic review to date has examined histopathological parameters in relation to native liver survival in children who undergo the Kasai operation for biliary atresia (BA). A systematic review and meta-analysis is presented, comparing the frequency of native liver survival in peri-operative severe vs. non-severe liver fibrosis cases, in addition to other reported histopathology parameters. Records were sourced from MEDLINE, Embase, and CENTRAL databases. Studies followed the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines and compared native liver survival frequencies in pediatric patients with evidence of severe vs. non-severe liver fibrosis, bile duct proliferation, cholestasis, lobular inflammation, portal inflammation, and giant cell transformation on peri-operative biopsies. The primary outcome was the frequency of native liver survival. A random effects meta-analysis was used. Twenty-eight observational studies were included, 1,171 pediatric patients with BA of whom 631 survived with their native liver. Lower odds of native liver survival in the severe liver fibrosis vs. non-severe liver fibrosis groups were reported (odds ratio [OR], 0.16; 95% confidence interval [CI], 0.08-0.33; I²=46%). No difference in the odds of native liver survival in the severe bile duct destruction vs. non-severe bile duct destruction groups were reported (OR, 0.17; 95% CI, 0.00-63.63; I²=96%). Lower odds of native liver survival were documented in the severe cholestasis vs. non-severe cholestasis (OR, 0.10; 95% CI, 0.01-0.73; I²=80%) and severe lobular inflammation vs. non-severe lobular inflammation groups (OR, 0.02; 95% CI, 0.00-0.62; I²=69%). There was no difference in the odds of native liver survival in the severe portal inflammation vs. non-severe portal inflammation groups (OR, 0.03; 95% CI, 0.00-3.22; I²=86%) or between the severe giant cell transformation vs. non-severe giant cell transformation groups (OR, 0.15; 95% CI, 0.00-175.21; I²=94%). The meta-analysis loosely suggests that the presence of severe liver fibrosis, cholestasis, and lobular inflammation are associated with lower odds of native liver survival in pediatric patients after Kasai.

• Journal of Chest Surgery
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• v.16 no.1
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• pp.176-182
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• 1983

Malignant lymphoma in chest wall is a rare form of extranodal variety as occasionally localized tumor. The primary site is suggested from rib or soft tissue, but the incidence in rib is higher than soft tissue. The patient, a male, aged 32, noted a swelling and pain over the left lower posterior chest from 3 months prior to admission. Roentgenograms revealed bony destruction in left 9, & 19th ribs posteriorly and associated chest wall mass which was ill defined uncleared margination. Under diagnosis of malignant tumor, the operation was performed and the tumor mass resected widely with en bloc technique than the fascia lata was grafted at chest wall defect. The histology of specimen was disclosed as malignant lymphoma, non-Hodgkin`s diffuse lymphocytic poorly differentiated form. The radio-and chemotherapy were combined post-operatively and the complete remission is acquired.

• Imaging Science in Dentistry
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• v.42 no.2
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• pp.111-114
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• 2012

Non-Hodgkin's lymphomas are a group of highly diverse malignancies and have a strong tendency to affect organs and tissues that do not ordinarily contain lymphoid cells. Primary extra nodal lymphoma of the hard palate is rare. Here, we present a case of diffuse large B cell lymphoma in a 60-year-old male patient that manifested as slightly painful ulcerated growth on the edentulous right maxillary alveolar ridge extending onto the palate, closely resembling carcinoma of the alveolar ridge. Computed tomography images showed the involvement of the maxillary sinus and right nasal cavity, along with destruction of hard palate, superiorly extending into the orbit. This case report highlights the importance of imaging to evaluate the exact extent of such large malignant lesions, which is essential for treatment planning.

• Journal of International Society for Simulation Surgery
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• v.3 no.1
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• pp.16-21
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• 2016

Computed tomography (CT) can completely digitize the interior and the exterior of nearly any object without any destruction. Generally, the resolution for industrial CT is below a few microns. The industrial CT scanning, however, has a limitation because it requires long measuring and processing time. Whereas, 2D X-ray imaging is fast. In this paper, we propose a novel concept of 3D non-destructive inspection technique using the advantages of both micro-CT and dual X-ray images. After registering the master object’s CT data and the sample objects’ dual X-ray images, 3D non-destructive inspection is possible by analyzing the matching results. Calculation for the registration is accelerated by parallel computing using graphics processing unit (GPU).

• Proceedings of the Korean Institute of Building Construction Conference
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• 2013.05a
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• pp.69-70
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• 2013

This is an foundational study to adequacy the non-destruction testing for the estimation of compressive strength of high strength concrete The results are as follows, In high strength concrete, H type is NR type rebound number rather than higher. The relation between rebound number and compressive strength of high strength concrete have lower coefficient. when compressive strength estimation of high strength concrete, it consider that rebound hardness test is not applied and should be consider to combined method or addition method.

• Proceedings of the Korean Society of Crop Science Conference
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• 2006.04a
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• pp.90-91
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• 2006

• Proceedings of the Korean Institute of Building Construction Conference
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• 2011.05a
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• pp.23-25
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• 2011

The purpose of this study is to suggest documentation with determination of concrete then property, according to demolition and restoration the Youngdo bridge which has valuable meaning to modern technique as an only bascule bridge in Korea.

• The Journal of Korean Medicine
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• v.23 no.4
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• pp.98-104
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• 2002

Objectives: Calpain, a calcium-dependent cysteine proteinase, may be one of the proteolytic enzymes that mediate cartilage degradation associated with rheumatoid arthritis. The object of this study is to ascertain immunohistochemically whether calpain is present in the inflamed joints of collagen-induced arthritis of rats, and examine the effect of Cortex Acanthopanacis Senticosi on the expression of calpain. Methods: Male Lewis rats, around 200g of body weight, were immunized with bovine type II collagen. After 3 weeks from first immunization, rats were divided into arthritic control (n=6) group and Cortex Acanthopanacis Senticosi-treated (n=6) group. Non-immunized rats served as the normal (n=6) group. All animals were sacrificed at 15 days post-treatment and tibiotarsal joints were removed. Calpain immunohistochemistry was performed on the midsagittal section of the tibiotarsal joint. Results: All animals of the control and treated groups showed ankylosing osteoarthritis. However, the animals of the treated group showed alleviation in the fibrous ankylosis, destruction of articular cartilage and destruction of subchondral bony tissue compared with the animals of the control group. Calpain was expressed in the chondrocyte lacunae of growing articular cartilage, in the skeletal muscle fibers, in the peripheral nerves, and in the vessel walls around the joints of all groups. In the control and treated groups, calpain was also expressed in proliferating synovial epithelia, subsynovial stroma cells, surface of articular cartilage, and fibrous pannus around destructive subchondral bony tissue. However, the expression density of calpain in the treated group was diminished compared with the control group, especially in surface of articular cartilage and fibrous pannus. Conclusions: These observations indicated that calpain plays an important role in the destruction of cartilage and bone in collagen-induced arthritis of rats, and also indicated that Cortex Acanthopanacis Senticosi inhibits the development of arthritis by decreasing the expression of calpain.

• Applied Chemistry for Engineering
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• v.22 no.1
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• pp.31-36
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• 2011

Tetrafluoromethane ($CF_4$) has been used as the plasma etching and chemical vapor deposition (CVD) gas for semiconductor manufacturing processes. However, the gas need to be removed efficiently because of their strong absorption of infrared radiation and the long atmospheric lifetime which cause global warming effects. A waterjet gliding arc plasma system in which plasma is combined with the waterjet was developed to effectively produce OH radicals, resulting in efficient destruction of $CF_4$ gas. Design factors such as electrode shape, electrode angle, gas nozzle diameter, electrode gap, and electrode length were investigated. The highest $CF_4$ destruction of 93.4% was achieved at Arc 1 electrode shape, $20^{\circ}$ electrode angle, 3 mm gas nozzle diameter, 3 mm electrode gap and 120 mm electrode length.