A lymph node mediastinal foreign body reaction mimicking nodal metastasis: A case series.

Introduction: In the last decades, many haemostatic substances included oxidized cellulose topically applied have been used during surgery and their use have become a common practice. Oxidized cellulose (OC) is one of the most used haemostatic substances. However, different studies have shown the persistence of OC deposits after surgical procedures that may simulate recurrent malignancies and abscesses.

First Detection of SARS-CoV-2 by Real-Time Reverse Transcriptase-Polymerase Chain Reaction Assay in Pleural Fluid.

Coronavirus disease 2019 (COVID-19) is a pandemic infection due to the spread of a novel coronavirus (severe acute respiratory syndrome coronavirus 2), resulting in a wide range of clinical features, from asymptomatic carriers to ARDS. The gold standard for diagnosis is nucleic acid detection by real-time reverse transcriptase-polymerase chain reaction in nasopharyngeal swabs. However, due to limitations in this technique's sensitivity, thoracic imaging plays a crucial, complementary role in diagnostic evaluation and also allows for detection of atypical findings and potential alternative targets for sampling (eg, pleural effusion).