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경구개에서 발생한 두 암종 요소를 포함한 다형성 선종으로부터 유래된 암종
Hiroyuki Kaneko,Takashi Muramatsu,Kitaro Onozawa,Hisashi Yano,Mami Owada,Hiroyuki Abe 대한구강악안면병리학회 2012 대한구강악안면병리학회지 Vol.36 No.2
Carcinoma ex pleomorphic adenoma is a rare malignant salivary gland tumor. The carcinomatous component of the carcinoma ex pleomorphic adenoma is mostly one type such as adenocarcinoma NOS, salivary duct carcinoma and undifferentiated carcinoma. We present a case of carcinoma ex pleomorphic adenoma including two carcinomatous components. The tumor occurred in the palate of a 70-year-old man. Histopathologically, the tumor was composed of both benign pleomorphic adenoma and the carcinoma area that showed adenocarcinoma NOS and squamous cell carcinoma. Finally this case was diagnosed as carcinoma ex pleomorphic adenoma including two carcinomatous components
Carcinoma ex Pleomorphic Adenoma Including Two Carcinoma Components Arising in the Palate
Hiroyuki Kaneko,Takashi Muramatsu,Kitaro Onozawa,Hisashi Yano,Mami Owada,Hiroyuki Abe 대한구강악안면병리학회 2012 대한구강악안면병리학회지 Vol.36 No.2
Carcinoma ex pleomorphic adenoma is a rare malignant salivary gland tumor. The carcinomatous component of the carcinoma ex pleomorphic adenoma is mostly one type such as adenocarcinoma NOS, salivary duct carcinoma and undifferentiated carcinoma. We present a case of carcinoma ex pleomorphic adenoma including two carcinomatous components. The tumor occurred in the palate of a 70-year-old man. Histopathologically, the tumor was composed of both benign pleomorphic adenoma and the carcinoma area that showed adenocarcinoma NOS and squamous cell carcinoma. Finally this case was diagnosed as carcinoma ex pleomorphic adenoma including two carcinomatous components.
The impact of sarcopenia on the results of lumbar spinal surgery
Hiroyuki Inose,Tsuyoshi Yamada,Takashi Hirai,Toshitaka Yoshii,Yasuko Abe 대한골다공증학회 2018 Osteoporosis and Sarcopenia Vol.4 No.1
Objectives: As the population ages, the number of lumbar spinal surgeries performed on sarcopenic patients will increase. The purpose of this study was to investigate the prevalence of sarcopenia and evaluated its impact on the results of lumbar spinal surgery. Methods: This study included 2 groups: One group consisted of patients who underwent whole-body dual-energy X-ray absorptiometry (DXA) scanning before the option of undergoing surgery for lumbar spinal disease (LSD group) and a second group consisted of patients underwent DXA scanning for osteoporosis screening under hospital watch at the geriatric medicine department (control group). In order to evaluate the impact of sarcopenia on the clinical outcome of lumbar spinal surgery, the Japanese Orthopedic Association (JOA) score, the recovery rate based on the JOA score, and visual analogue scale (VAS) scores for lower back pain, lower extremity pain, and lower extremity numbness were compared within the LSD group. Results: The prevalence of sarcopenia showed no statistical difference between groups (control group,50.7%; LSD group, 46.5%). In the LSD group, while the changes in VAS scores showed no statistical difference between the nonsarcopenia subgroup and sarcopenia subgroup, the sarcopenia subgroup demonstrated inferior JOA scores and recovery rates at the final follow-up when compared with the nonsarcopenia subgroup (P < 0.05). Conclusions: This study demonstrated a high prevalence of sarcopenia among the elderly populations in Japan and a negative impact of sarcopenia on clinical outcomes after lumbar spinal surgery.
Hiroyuki Tsuchie,Naohisa Miyakoshi,Yuji Kasukawa,Tomio Nishi,Hidekazu Abe,Toyohito Segawa,Yoichi Shimada 대한골다공증학회 2016 Osteoporosis and Sarcopenia Vol.2 No.1
Objectives: While it has been pointed out that an anteroposterior (AP) view of the lumbar spine may lead to overestimation of the bone mineral density (BMD), a lateral view is expected lead to the early detection of BMD loss on scanning cancellous bone. Vertebral fracture is often seen in aged osteoporotic patients, and it is important to prevent this fracture. Therefore, we aimed to identify the optimal site for BMD measurement to assess the risk of vertebral fracture. Methods: Forty-seven female patients with fresh osteoporotic vertebral fracture and BMD measurements were included in this study (Fracture group). As a non-fractured control group, 218 female patients with BMD measurements were enrolled (Control group). We compared BMD values based on AP and lateral views of the lumbar spine from L2 to L4 and the femoral neck. With a lateral view of the lumbar spine, we measured both the total vertebral body and vertebral body center, mainly composed of cancellous bone. Results: BMD of the AP lumbar spine in the Fracture group was significantly lower than in the Control group (P < 0.05). In the subanalyses for comparisons between age-matched fracture and control groups, BMD of only the AP lumbar spine in the Fracture group was significantly lower than in the Control group (P < 0.01). Conclusions: AP lumbar spine BMD is optimal for assessing vertebral fracture occurrence. © 2016 The Korean Society of Osteoporosis. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Efficacy of Current Traction Techniques for Endoscopic Submucosal Dissection
Seiichiro Abe,Shih Yea Sylvia Wu,Mai Ego,Hiroyuki Takamaru,Masau Sekiguchi,Masayoshi Yamada,Satoru Nonaka,Taku Sakamoto,Haruhisa Suzuki,Shigetaka Yoshinaga,Takahisa Matsuda,Ichiro Oda,Yutaka Saito 거트앤리버 소화기연관학회협의회 2020 Gut and Liver Vol.14 No.6
This systematic review aimed to assess the efficacy of the current approach to tissue traction during the endoscopic submucosal dissection (ESD) of superficial esophageal cancer, early gastric cancer, and colorectal neoplasms. We performed a systematic electronic literature search of articles published in PubMed and selected comparative studies to investigate the treatment outcomes of tractionassisted versus conventional ESD. Using the keywords, we retrieved 381 articles, including five eligible articles on the esophagus, 13 on the stomach, and 12 on the colorectum. A total of seven randomized controlled trials and 23 retrospective studies were identified. Clip line traction and submucosal tunneling were effective in reducing the procedural time during esophageal ESD. The efficacy of traction methods in gastric ESD varied in terms of the devices and strategies used depending on the lesion location and degree of submucosal fibrosis. Several prospective and retrospective studies utilized traction devices without the need to reinsert the colonoscope. When pocket creation is included, the traction devices and methods effectively shorten the procedural time during colorectal ESD. Although the efficacy is dependent on the organ and tumor locations, several traction techniques have been demonstrated to be efficacious in facilitating ESD by maintaining satisfactory traction during dissection.
Takeyuki Abe,Hiroyuki Sasahara 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.
The direct metal lamination is a kind of the additive manufacturing process using the arc welding technology; where the molten metalmade by the arc discharge is accumulated successively in this process. Overhanging shapes can be fabricated without supportmaterials but lamination height error is caused in largely inclined area. In this paper, the lamination height error was estimated byusing the accumulated metal shape model. Then, the lamination height error was compensated by changing welding torch feed speedso that the top surface of the laminated layer became horizontal. As a result, not only the lamination height error was decreased by50%, but average inclination angle error was decreased by 50%.
Atsushi Fusegi,Hiroyuki Kanao,Shiho Tsumura,Atsushi Murakami,Akiko Abe,Yoichi Aoki,Hidetaka Nomura 대한부인종양학회 2023 Journal of Gynecologic Oncology Vol.34 No.1
Radical hysterectomy is a standard surgery to treat early-stage uterine cervical cancer. The Laparoscopic Approach to Cervical Cancer (LACC) trial has shown that patients receiving minimally invasive radical hysterectomy have a poorer prognosis than those receiving open radical hysterectomy; however, the reason for this remains unclear. The LACC trial had 2 concerns: the learning curve and the procedural effects. Appropriate management of the learning curve effect, including surgeons’ skills, is required to correctly interpret the result of surgical randomized controlled trials. Whether the LACC trial managed the learning curve effect remains controversial, based on the surgeons’ inclusion criteria and the distribution of institutions with recurrent cases. An appropriate surgical procedure is also needed, and avoiding intraoperative cancer cell spillage plays an important role during cancer surgery. Cancer cell spillage during minimally invasive surgery to treat cervical cancer is caused by several factors, including 1) exposure of tumor, 2) the use of a uterine manipulator, and 3) direct handling of the uterine cervix. Unfortunately, these issues were not addressed by the LACC trial. We evaluated the results of minimally invasive radical hysterectomy while avoiding cancer cell spillage for early-stage cervical cancer. Our findings show that avoiding cancer cell spillage during minimally invasive radical hysterectomy may ensure an equivalent oncologic outcome, comparable to that of open radical hysterectomy. Therefore, evaluating the importance of avoiding cancer cell spillage during minimally invasive surgery with a better control of the learning curve and procedural effects is needed.
Atsushi Fusegi,Hiroyuki Kanao,Mayumi Kamata,Shogo Nishino,Akiko Abe,Makiko Omi,Hidetaka Nomura 대한부인종양학회 2024 Journal of Gynecologic Oncology Vol.35 No.4
Objective: To describe anatomic patterns of the superficial uterine vein (sUV) and assesstheir association with aspects of the dissection procedure of the anterior layer of thevesicouterine ligament (aVUL) by retrospectively reviewing surgical videos. Methods: We analyzed patients who under went laparoscopic radical hysterectomy forearly-stage cer vical cancer from 2014 to 2019. The primar y endpoint was the time requiredfor aVUL dissection. Multiple linear regression analyses were performed to identif y factorsinfluencing the time required for aVUL dissection. Results: Fifty-three Japanese patients were included. Two sUV configurations were obser ved:type 1 (the vein ran ventral to the ureter along the uterine arter y) and type 2 (the vein did notrun along the usual ventral course; it ran dorsal to the ureter or was absent). Approximately30% of the sUVs were type 2. The total time for dissection of both sides of the aVUL wassignificantly shorter for type 2 sUVs than for type 1 sUVs. The number of hemostaticinter ventions during dissection of each side of the aVUL was significantly lower for type 2sUVs than for type 1 sUVs. In the multivariate analysis, the sUV configuration was the factorsignificantly influencing the duration of aVUL dissection on each side (right side: β=−143.4;left side, β=−160.4). Conclusion: We demonstrated that the sUV had 2 types of courses, ventral and others, and itscourse affected the time required for dissection and the number of hemostatic inter ventions. Our results provide information supportive of improved radical hysterectomy outcomes.