1.A case of feline extramedullary plasma cell tumor with T cell infiltration
Jung-Hyun KIM ; Jiwoong YOON ; Sol-Ji CHOI ; Woo-Jin SONG ; Youngmin YUN ; Myung-Chul KIM
Korean Journal of Veterinary Research 2024;64(3):e25-
A 7-year-old castrated male Persian cat presented with a cutaneous mass and an increase in serum amyloid A concentration. Fine needle aspirates of the mass indicated lymphoma, which was also the top differential diagnosis on histopathologic examinations. Immunohistochemically, neoplastic cells tested negative for anti-CD3, PAX5, CD20, and c-Kit, but positive for MUM1, CD79α, and CD138, suggesting extramedullary plasmacytoma. There were tumor-infiltrating non-neoplastic CD3+ T and CD20+ B cells. Practitioners should be aware of feline plasmacytoma characterized by lymphoma-like cytologic and histologic features. The present study is valuable in providing the first clinical evidence that proves the immunogenicity of feline plasmacytoma.
2.Development of colonic stent simulator using three-dimensional printing technique: a simulator development study in Korea
Hyundam GU ; Suyoung LEE ; Sol KIM ; Hye-Lim JANG ; Da-Woon CHOI ; Kyu Seok KIM ; Yu Ri SHIN ; Dae Young CHEUNG ; Bo-In LEE ; Jin Il KIM ; Han Hee LEE
Clinical Endoscopy 2024;57(6):790-797
Background/Aims:
Colonic stenting plays a vital role in the management of acute malignant colonic obstruction. The increasing use of self-expandable metal stents (SEMS) and the diverse challenges posed by colonic obstruction at various locations underscore the importance of effective training for colonic stent placement.
Methods:
All the components of the simulator were manufactured using silicone molding techniques in conjunction with three-dimensional (3D) printing. 3D images sourced from computed tomography scans and colonoscopy images were converted into a stereolithography format. Acrylonitrile butadiene styrene copolymers have been used in fused deposition modeling to produce moldings.
Results:
The simulator replicated the large intestine from the rectum to the cecum, mimicking the texture and shape of the human colon. It enables training for colonoscopy insertion, cecum intubation, loop reduction, and stenting within stenotic areas. Interchangeable stenotic modules for four sites (rectum, sigmoid colon, descending colon, and ascending colon) were easily assembled for training. These modules integrate tumor contours and blood vessel structures with a translucent center, allowing real-time visualization during stenting. Successful and repeatable demonstrations of stent insertion and expansion using the reusable SEMS were consistently achieved.
Conclusions
This innovative simulator offers a secure colonic stenting practice across various locations, potentially enhancing clinical outcomes by improving operator proficiency during actual procedures.
3.A case of feline extramedullary plasma cell tumor with T cell infiltration
Jung-Hyun KIM ; Jiwoong YOON ; Sol-Ji CHOI ; Woo-Jin SONG ; Youngmin YUN ; Myung-Chul KIM
Korean Journal of Veterinary Research 2024;64(3):e25-
A 7-year-old castrated male Persian cat presented with a cutaneous mass and an increase in serum amyloid A concentration. Fine needle aspirates of the mass indicated lymphoma, which was also the top differential diagnosis on histopathologic examinations. Immunohistochemically, neoplastic cells tested negative for anti-CD3, PAX5, CD20, and c-Kit, but positive for MUM1, CD79α, and CD138, suggesting extramedullary plasmacytoma. There were tumor-infiltrating non-neoplastic CD3+ T and CD20+ B cells. Practitioners should be aware of feline plasmacytoma characterized by lymphoma-like cytologic and histologic features. The present study is valuable in providing the first clinical evidence that proves the immunogenicity of feline plasmacytoma.
4.A case of feline extramedullary plasma cell tumor with T cell infiltration
Jung-Hyun KIM ; Jiwoong YOON ; Sol-Ji CHOI ; Woo-Jin SONG ; Youngmin YUN ; Myung-Chul KIM
Korean Journal of Veterinary Research 2024;64(3):e25-
A 7-year-old castrated male Persian cat presented with a cutaneous mass and an increase in serum amyloid A concentration. Fine needle aspirates of the mass indicated lymphoma, which was also the top differential diagnosis on histopathologic examinations. Immunohistochemically, neoplastic cells tested negative for anti-CD3, PAX5, CD20, and c-Kit, but positive for MUM1, CD79α, and CD138, suggesting extramedullary plasmacytoma. There were tumor-infiltrating non-neoplastic CD3+ T and CD20+ B cells. Practitioners should be aware of feline plasmacytoma characterized by lymphoma-like cytologic and histologic features. The present study is valuable in providing the first clinical evidence that proves the immunogenicity of feline plasmacytoma.
5.Development of colonic stent simulator using three-dimensional printing technique: a simulator development study in Korea
Hyundam GU ; Suyoung LEE ; Sol KIM ; Hye-Lim JANG ; Da-Woon CHOI ; Kyu Seok KIM ; Yu Ri SHIN ; Dae Young CHEUNG ; Bo-In LEE ; Jin Il KIM ; Han Hee LEE
Clinical Endoscopy 2024;57(6):790-797
Background/Aims:
Colonic stenting plays a vital role in the management of acute malignant colonic obstruction. The increasing use of self-expandable metal stents (SEMS) and the diverse challenges posed by colonic obstruction at various locations underscore the importance of effective training for colonic stent placement.
Methods:
All the components of the simulator were manufactured using silicone molding techniques in conjunction with three-dimensional (3D) printing. 3D images sourced from computed tomography scans and colonoscopy images were converted into a stereolithography format. Acrylonitrile butadiene styrene copolymers have been used in fused deposition modeling to produce moldings.
Results:
The simulator replicated the large intestine from the rectum to the cecum, mimicking the texture and shape of the human colon. It enables training for colonoscopy insertion, cecum intubation, loop reduction, and stenting within stenotic areas. Interchangeable stenotic modules for four sites (rectum, sigmoid colon, descending colon, and ascending colon) were easily assembled for training. These modules integrate tumor contours and blood vessel structures with a translucent center, allowing real-time visualization during stenting. Successful and repeatable demonstrations of stent insertion and expansion using the reusable SEMS were consistently achieved.
Conclusions
This innovative simulator offers a secure colonic stenting practice across various locations, potentially enhancing clinical outcomes by improving operator proficiency during actual procedures.
6.A case of feline extramedullary plasma cell tumor with T cell infiltration
Jung-Hyun KIM ; Jiwoong YOON ; Sol-Ji CHOI ; Woo-Jin SONG ; Youngmin YUN ; Myung-Chul KIM
Korean Journal of Veterinary Research 2024;64(3):e25-
A 7-year-old castrated male Persian cat presented with a cutaneous mass and an increase in serum amyloid A concentration. Fine needle aspirates of the mass indicated lymphoma, which was also the top differential diagnosis on histopathologic examinations. Immunohistochemically, neoplastic cells tested negative for anti-CD3, PAX5, CD20, and c-Kit, but positive for MUM1, CD79α, and CD138, suggesting extramedullary plasmacytoma. There were tumor-infiltrating non-neoplastic CD3+ T and CD20+ B cells. Practitioners should be aware of feline plasmacytoma characterized by lymphoma-like cytologic and histologic features. The present study is valuable in providing the first clinical evidence that proves the immunogenicity of feline plasmacytoma.
7.Development of colonic stent simulator using three-dimensional printing technique: a simulator development study in Korea
Hyundam GU ; Suyoung LEE ; Sol KIM ; Hye-Lim JANG ; Da-Woon CHOI ; Kyu Seok KIM ; Yu Ri SHIN ; Dae Young CHEUNG ; Bo-In LEE ; Jin Il KIM ; Han Hee LEE
Clinical Endoscopy 2024;57(6):790-797
Background/Aims:
Colonic stenting plays a vital role in the management of acute malignant colonic obstruction. The increasing use of self-expandable metal stents (SEMS) and the diverse challenges posed by colonic obstruction at various locations underscore the importance of effective training for colonic stent placement.
Methods:
All the components of the simulator were manufactured using silicone molding techniques in conjunction with three-dimensional (3D) printing. 3D images sourced from computed tomography scans and colonoscopy images were converted into a stereolithography format. Acrylonitrile butadiene styrene copolymers have been used in fused deposition modeling to produce moldings.
Results:
The simulator replicated the large intestine from the rectum to the cecum, mimicking the texture and shape of the human colon. It enables training for colonoscopy insertion, cecum intubation, loop reduction, and stenting within stenotic areas. Interchangeable stenotic modules for four sites (rectum, sigmoid colon, descending colon, and ascending colon) were easily assembled for training. These modules integrate tumor contours and blood vessel structures with a translucent center, allowing real-time visualization during stenting. Successful and repeatable demonstrations of stent insertion and expansion using the reusable SEMS were consistently achieved.
Conclusions
This innovative simulator offers a secure colonic stenting practice across various locations, potentially enhancing clinical outcomes by improving operator proficiency during actual procedures.
8.A case of feline extramedullary plasma cell tumor with T cell infiltration
Jung-Hyun KIM ; Jiwoong YOON ; Sol-Ji CHOI ; Woo-Jin SONG ; Youngmin YUN ; Myung-Chul KIM
Korean Journal of Veterinary Research 2024;64(3):e25-
A 7-year-old castrated male Persian cat presented with a cutaneous mass and an increase in serum amyloid A concentration. Fine needle aspirates of the mass indicated lymphoma, which was also the top differential diagnosis on histopathologic examinations. Immunohistochemically, neoplastic cells tested negative for anti-CD3, PAX5, CD20, and c-Kit, but positive for MUM1, CD79α, and CD138, suggesting extramedullary plasmacytoma. There were tumor-infiltrating non-neoplastic CD3+ T and CD20+ B cells. Practitioners should be aware of feline plasmacytoma characterized by lymphoma-like cytologic and histologic features. The present study is valuable in providing the first clinical evidence that proves the immunogenicity of feline plasmacytoma.
9.Clinical Sensitivity of the (1–3)-β-D-glucan Test for Predicting Candidemia
Yun Woo LEE ; So Yun LIM ; Sol JIN ; Hye Jin PARK ; Heungsup SUNG ; Mi-Na KIM ; Seongman BAE ; Jiwon JUNG ; Min Jae KIM ; Sung-Han KIM ; Sang-Oh LEE ; Sang-Ho CHOI ; Yang Soo KIM ; Yong Pil CHONG
Annals of Laboratory Medicine 2023;43(4):381-385
The sensitivity of the (1–3)-β-D-glucan (BDG) diagnostic test for candidemia varies in different clinical settings, and its usefulness in early diagnosis of candidemia is suboptimal. We evaluated the sensitivity of the test for early candidemia prediction. All adult patients with culture-proven candidemia who underwent a serum Goldstream Fungus (1–3)-β-D-Glucan Test within seven days prior to candidemia onset at a tertiary referral hospital between January 2017 and May 2021 were included. Any-positive BDG results within seven days prior to candidemia onset were obtained in 38 out of 93 (40.9%) patients. The positive rate increased when the test was performed near the day of candidemia onset (P=0.04) but reached only 52% on the day of candidemia onset. We observed no significant differences between BDG-positive and -negative groups in terms of underlying disease, risk factors for candidemia, clinical presentation, origin of candidemia, and 30-day mortality. Candida albicans was significantly associated with positive BDG results than with all-negative BDG results (P=0.04). The Goldstream BDG test is unreliable for candidemia prediction because of its low sensitivity. Negative BDG results in patients with a high risk of invasive candidiasis should be interpreted with caution.
10.Prosthetic rehabilitation in a Class III malocclusion patient with increasing occlusal vertical dimension
Ha-Eun CHOI ; Han-Sol SONG ; Kyung-Ho KO ; Yoon-Hyuk HUH ; Chan-Jin PARK ; Lee-Ra CHO
Journal of Dental Rehabilitation and Applied Science 2023;39(3):133-145
Class III malocclusion with mandibular protrusion can be divided into skeletal and pseudo malocclusion due to tooth displacement.For skeletal malocclusion, favorable treatment results can be obtained by establishing an appropriate vertical and horizontal intermaxillary relationship in order to secure a restoration space and obtain aesthetic and functional results. In this case, complete mouth rehabilitation was performed using an implant and a fixed prosthesis in a patient with mandibular protrusion and anterior teeth wear and reduced occlusal vertical dimension. After cast analysis and digital diagnosis, a provisional restoration with increased vertical dimension was fabricated to secure posterior support and evaluate stable centric occlusion. With the definitive prosthesis reflecting the provisional restoration, favorable function and aesthetics were obtained.

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