Methods
A CT scan of the chest revealed an ill-defined subpleural cavitary lesion in left lower zone with bilateral diffuse ground glass opacity and internal air bronchogram. There were cavitary nodules in right lung. Some small mediastinal lymph nodes were also present (Fig. 1) According to the symptoms and pattern of lung CTscan, he was prescribed with meropenem, levofloxacin, vancomycin, and co-trimoxazole, as well as hydrocortisone and nystatin drop. He was admitted to the ICU due to his low oxygen saturation. The results of laboratory tests showed as following: WBC: 10200/L, Neutrophil: 95%, normocytic anemia, Platelet: 233000 U, ESR (Erythrocyte Sedimentation Rate): 63 mm/hr, CRP (C- Reactive Protein): 95, LDH: 831, Urine culture: negative, Urine analysis: normal, Blood culture: negative. On sputum smear: No AFB (acid-fast bacillus) was seen
and, sputum culture was negative. Blood levels of electrolytes were normal, as were the results of liver-function and kidney-function tests, Rheumatologic markers and
PCR from nasopharyngeal specimen for COVID-9 and Influenza virus.