Internal medicine
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A 61-year-old man experienced chest oppression for 1 hour. He was positive for troponin T and underwent emergent coronary angiography (CAG), which did not reveal significant coronary stenosis. ⋯ After receiving a calcium-channel blocker, he exhibited a good clinical course. Coronary spasm is considered an underlying cause of MINOCA; therefore, the presence of a myocardial bridge may help with the diagnosis.
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Two patients, a 76-year-old woman and 66-year-old woman, presented to our hospital with symptoms of lower respiratory tract infection. Both patients showed chest imaging findings of bilateral ground-glass opacities and consolidations. We initially suspected these patients of having influenza-associated pneumonia and cryptogenic organizing pneumonia, respectively, and performed bronchoalveolar lavage, but only human parainfluenza virus-1 infection was detected by multiplex polymerase chain reaction testing. These findings suggest that pneumonia due to human parainfluenza virus-1 should be included in the differential diagnosis of such cases.