PMC7718649_01
Treatments, radiology and pathogen findings according to day of illness and day of hospitalization. Symbols: X, CT conducted; +, positive result; -, negative result. Abbreviations: IVIg, intravenous immunoglobulin; CT, computed tomography; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; IgM, immunoglobulin M.
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M. pneumoniae infection was found by serology (Figure 1).
Thoracic CT images. (a) Thoracic CT of day 6 of hospitalization showed bilateral ground-glass, patchy and cord-like shadows. (b) Thoracic CT of day 15 of hospitalization showed that pulmonary infiltration was partly absorbed. (c) Thoracic CT of day 22 of hospitalization showed that pulmonary infiltration was absorbed obviously.
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Thoracic CT (February 14, 2020) showed bilateral ground-glass, patchy and cord-like shadows (Figure 2a), which was better than the second CT (February 8, 2020) before admission (according to the medical records). The ratio of helper T cell versus suppressor T cell was elevated (6.01). The thoracic CT (February 23, 2020) showed a modest upturn in the lesions (Figure 2b). The dosage of prednisone was then reduced to 10 mg once daily as pneumonia improved. Laboratory findings (Table 1) and thoracic CT (Figure 2c) indicated improvement relative to last time.