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神経感染症は迅速な診断と治療が生命と機能の予後を左右する。軽微で非典型的な症状が先行し遷延する場合,神経内科医が診療に関わるタイミングが遅れ,診断や治療も遅れがちになる危険がある。本章では,症状が比較的軽度で,典型的な症状が出揃うのに時間がかかり,そのために診断,治療が遅れそうだった3例を提示した。
Abstract
Infectious diseases of the nervous system are a group of diseases; timely diagnosis and treatment for these diseases determines the effect of prognosis on life and functions. Diagnosis itself is not very difficult in cases presenting with typical symptoms. However, if mild and atypical symptoms have been present for long, the underlying disease may not be easily recognized as a neurological disease or infectious disorder, and the diagnosis may be delayed. Furthermore, neurologists may not always be able to examine patients from the first visit itself. In this chapter, I present three cases with mild and atypical initial symptoms. The first case involved a patient with tetanus, whose initial symptom was dysphagia, and the onset of trismus was the turning point for diagnosis. The second case involved a patient with herpes simplex encephalitis. Dyshydrosis and dysosmia were the initial symptoms, and the appearance of disorientation, fever, and consciousness disturbance helped in achieving the final diagnosis. The last case was of a patient with Japanese encephalitis, whose initial symptoms were fever and parkinsonism. A recent history of surgery for gastric cancer, disease onset in the summer season, and living with neighbors on pig farms was indicative of Japanese encephalitis.
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