A rare presentation of necrotizing sarcoidosis.

Sarcoidosis is a disease with unknown aetiology and pathogenesis which affects young adults and is usually a non-necrotizing granulomatous disease seen in histology. Variants of the disease, such as necrotizing sarcoidosis, were first described by Liebow in 1973 and are rarely seen. This case report describes the case of a 60-year-old Bengali female who presented with vague symptoms and was found to have chronic granulomatous inflammation with foci of calcifications involving the lungs, liver and spleen consistent with necrotizing sarcoidosis.

Analysis of ABO and Rh Blood Type Association With Acute COVID-19 Infection in Hospitalized Patients: A Superficial Association Among a Multitude of Established Confounders.

Background: Coronavirus disease 2019 (COVID-19) has affected millions of people worldwide, and considerable effort is focused on identifying certain populations at increased risk. ABO blood types have been associated with disease susceptibility; however, evidence remains limited. Our aim was to determine the association between ABO/Rh blood type with disease susceptibility and mortality among admitted COVID-19 patients.