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We describe the case of a patient who swallowed a small fish bone and felt it lodge in her pharynx, but failed to seek medical attention in a timely manner. One week later, no foreign body was found in the hypopharynx or larynx, but a small purulent cyst was present in the epiglottic vallecula. A computed tomography scan showed a high-density area on the lingual surface of the epiglottis, which was considered to represent an embedded fish bone. A week later, the patient’s discomfort had subsided, and flexible videoendoscopy showed that the purulent cyst in the epiglottic vallecula had disappeared. We surmise that the purulent cyst had ruptured spontaneously and the foreign body had been discharged. This represents an example of how an impacted small foreign body may be spontaneously discharged from the body.

A quantum random walk optimization model and algorithm in network cluster server traffic control and task scheduling is proposed. In order to solve the problem of server load balancing, we research and discuss the distribution theory of energy field in quantum mechanics and apply it to data clustering. We introduce the method of random walk and illuminate what the quantum random walk is. Here, we mainly research the standard model of one-dimensional quantum random walk. For the data clustering problem of high dimensional space, we can decompose one m-dimensional quantum random walk into m one-dimensional quantum random walk. In the end of the paper, we compare the quantum random walk optimization method with GA (genetic algorithm), ACO (ant colony optimization), and SAA (simulated annealing algorithm). In the same time, we prove its validity and rationality by the experiment of analog and simulation.

A quantum optimization scheme in network cluster server task scheduling is proposed. We explore and research the distribution theory of energy field in quantum mechanics; specially, we apply it to data clustering. We compare the quantum optimization method with genetic algorithm (GA), ant colony optimization (ACO), simulated annealing algorithm (SAA). At the same time, we prove its validity and rationality by analog simulation and experiment. [ABSTRACT FROM AUTHOR]

It is very rare for extracranial carotid artery dissection to present as a carotid pseudoaneurysm. A delayed diagnosis and delayed treatment will lead to rupture of carotid pseudoaneurysm and massive hemorrhage and death. In this paper, we reviewed the progress of the disease in one patient and reviewed the relevant literature reports to understand the characteristics of the disease. The patient had two consultations within the otolaryngology department. The patient later showed signs of infection in the parapharyngeal space and then died of an aneurysmal rupture and massive hemorrhage., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.