New-onset lung sarcoidosis, an adverse event by COVID-19 or a sign of convalescence; a case report.

Key Clinical Message: Sarcoidosis is a systemic inflammatory disease able to affect any organ within the body. Sarcoidosis may be the body's secondary response to COVID-19 infection and a sign of rehabilitation. Early response to the treatments reinforces this hypothesis. The majority of sarcoidosis patients require immunosuppressive therapies, including corticosteroids. Abstract: Most studies so far have focused on the management of COVID-19 in patients suffering from sarcoidosis. Nevertheless, the current report aims to present a COVID-19-induced sarcoidosis case. Sarcoidosis is a systemic inflammatory disease with granulomas. Still, its etiology is unknown. It often affects the lungs and lymph nodes. A previously healthy 47-year-old female was referred with the following chief complaints: atypical chest pain, dry cough, and dyspnea on exertion within a month after COVID-19 infection. Accordingly, a chest computed tomography revealed multiple conglomerated lymphadenopathies in the thoracic inlet, mediastinum, and hila. A core-needle biopsy from the nodes revealed non-necrotizing granulomatous inflammation, sarcoidal type. The sarcoidosis diagnosis was proposed and confirmed by a negative purified protein derivative (PPD) test. Accordingly, prednisolone was prescribed. All symptoms were relieved. A control lung HRCT was taken 6 months later, showing the lesions had disappeared. In conclusion, sarcoidosis may be the body's secondary response to COVID-19 infection and a sign of disease convalescence.

COVID 19 with neurological symptoms, rhabdomyolysis and brain death: a case report.

BACKGROUND: In the worldwide, there are the pandemic of the virus coronavirus disease 2019 (COVID-19) and there is no approved treatment for this disease. CASE PRESENTATION: This study reported a new case with COVID 19 with neurological symptoms such as headache and loss of consciousness without any symptoms and imaging of COVID 19 in admission but RT-PCR COVID 19 of patient was positive and during hospitalization patient had increasing cerebrospinal fluid (CSF) volume in sub-arachnoid space, micro-hemorrhaging in basal ganglia and down ward cerebellar tonsile herniation in the brain imaging, also there were rhabdomyolysis and thrombotic thrombocytopenic purpura in the lab data. Finally, based on abnormal electroencephalogram (EEG), brain death was diagnosed for patient in end of hospitalization. In the 8th of admission day, the patients died after cardiovascular arrest. CONCLUSION: The COVID 19 can be associated with different symptoms such as neurological complication and brain death was unusual complication in COVID19.