case_images: PMC11317053_01
case_images: (A-C) Chest CT on the first day of admission: multiple flaky, cloudy lungs with increased density and blurred edges.
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case_images: After two days of oral treatment with oseltamivir, the patient continued to have a recurrent high fever and worsening cough, with the chest computed tomography (CT) showing inflammation in both lungs (Figure 1A-C). After 2 hours of hospital admission, the patient presented with progressive dyspnea, paroxysmal chest pain, and a rapid increase in wet rales on auscultation of both lungs.
case_images: X-ray on the second day of admission: large patches of increased density shadow on both lungs with blurred edges.
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case_images: Oxygen saturation (SpO2) decreased to 85%; C-reactive protein (CRP) increased from 7.3 mg/L to a maximum of 220.5 mg/L (normal range: 0-6 mg/L); D-dimer (D-D), 4.67 mg/L (normal range: 0-0.5 mg/L); activated partial thromboplastin time (APTT), 45.2 s (normal range: 23-31.3 s); procalcitonin (PCT) 15.63 ng/mL (normal range: 0-0.5 ng/mL); lactate dehydrogenase (LDH) 399 U/L (normal range: 120-250 U/L); and pulmonary exacerbations were observed on imaging (Figure 2); and negative nucleic acid tests for the following respiratory pathogens: respiratory syncytial virus (RSV), adenovirus, Mycoplasma pneumoniae, influenza A virus, influenza B virus, and rhinovirus.
case_images: X-ray on the eighth day of admission: the two pneumonia cases were significantly absorbed.
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case_images: After 5 days, the chest radiograph indicated obvious absorption of lung inflammation (Figure 3).