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Gastric adenocarcinoma with enteroblastic differentiation (GAED) is rare and its clinicopathological characteristics are not well documented. However, reports indicate that it exhibits more aggressive characteristics, including lymph node metastasis or liver metastasis, than a conventional gastric adenocarcinoma. Herein, we report a case of GAED with rapid recurrence and disease progression. A 55-year-old male, diagnosed with gastric cancer (GC), demonstrated initial endoscopic findings suggestive of advanced GC. He underwent curative resection since there was no evidence of lymph node or distant metastases. The disease was reported as an early GC that was confined to the submucosal layer, without evidence of lymph node metastasis in the final pathological results. However, six months after surgery, multiple hepatic metastases were found during abdominal computed tomography; the pathological results were consistent with metastasis from the GC. Immunohistochemistry of the primary carcinoma pathological specimens showed positive results for alpha-fetoprotein and sal-like protein 4, suggesting enteroblastic differentiation, which is thought to be associated with rapid recurrence and disease progression.

Background/Aims: Anorectal functions are influenced by gender and age. This study sought to define the normal anorectal pressure values measured with conventional anorectal manometry (ARM) and to evaluate the effects of age and gender on anorectal function in asymptomatic subjects. Methods: Conventional ARM was used to measure the anorectal pressures of 164 asymptomatic healthy subjects, including 86 males and 76 females. Results: The resting anal pressures of males and females aged >60 years were significantly lower than those ≤60 years (males, 44.09±14.22 vs. 57.45±17.69, p

With the development of advanced information technology, the current battlefield situation is in need of a new way of fighting that "situation judgment-determination-response" can proceed simultaneously. The dronebot combat system developed so far is not enough to satisfy the new paradigm combat system. This is a time when it is desperately necessary to establish a network capable of performing "situation judgment-determination-response". There is a need to establish an integrated control system capable of efficiently operating and controlling the defense dronebot combat system and visualizing the dronebot. The infrastructure network is essential to establish an integrated control system for managing the dronebot combat system. To build an integrated defense system for defense drones, the current paper aimed to establish a simultaneous infrastructure network system (a dronebot combat system, PS-LTE (disaster network), TICN (military tactical communication network)). Especially, it is necessary for setting such integrated defense system for defense drones. In the sense, the contribution of this study is to suggest the direction of development of a control system and controls and integrates various drones in the South Korean Army that set up a dronebot specialized unit in the future.

Although the performance of the weapon system is becoming more advanced and precise with the development of science and technology, the development of such technology can significantly affect the performance of the weapon system by shortening the life cycle of the component. the purpose of this study is to explore solutions for smooth operation and maintenance through examples and establish alternatives. Among the various weapons systems, the combined weapons system, vessel, is becoming incomparably complex and diverse in structure with the help of the development of electric and electronic technologies. Among them, the combat system is the system that has the greatest impact on the functions of the ship as it is operated in conjunction with various mounting equipment, and so component shutdown control is a representative of the projects that are needed first. Therefore, in this study, we propose a case-by-case alternative by analyzing the progress of the end-of-life management work through the case of the Jangbogo-III combat system development project, which was the first project to apply the component control program and the Refresh program in Korea, and we propose a process for component discontinuation management during the total life cycle of the entire period for the incomplete information. The analysis results and processes from the examples presented in this study are expected to contribute to increasing reliability and availability as well as budget savings in the acquisition and maintenance stages of weapons systems in the future.