Chest Imaging - Pleural and Mediastinal Conditions MCQs

Findings of COVID-19 on chest radiographs vary, ranging from normal in the early stages of disease to unilateral or bilateral lung opacities, sometimes with a basilar and strikingly peripheral distribution. Early research reported a relatively low sensitivity (69%) for the diagnosis of COVID-19 using baseline chest radiography. Although underlying comorbidities such as chronic lung disease or congestive heart failure may confound chest radiograph interpretation, studies have shown that many of the hallmark chest CT findings are apparent on chest radiograph Reference: COVID-19 Imaging: What We Know Now and What Remains Unknown Jeffrey P. Kanne, Harrison Bai, Adam Bernheim, Michael Chung, Linda B. Haramati, David F. Kallmes, Brent P. Little, Geoffrey Rubin, and Nicola Sverzellati Radiology 2021 299:3, E262-E279

IOC for minimal Pleural Effusion is Usg Best X ray View for minimal Pleural Effusion is Ipsilateral Lateral Decubitus View

Most Posterior mediastinal tumors are neurogenic tumors and MRI is the investigation preferred for evaluating posterior mediastinal mass.

Several chest CT findings have been reported in more than 70% of RT-PCR test–proven COVID-19 cases, including ground-glass opacities, vascular enlargement, bilateral abnormalities, lower lobe involvement, and posterior predilection. In COVID-19 endemic regions, the observation of these chest CT findings should raise the suspicion of possible COVID-19 diagnosis Reference: Chest CT in COVID-19: What the Radiologist Needs to Know Thomas C. Kwee and Robert M. Kwee Radio Graphics 2020 40:7, 1848-1865

COVID-19 may rapidly progress to ARDS, with older patients being at higher risk ARDS seen with COVID-19 is a cytokine release syndrome, in which immune and nonimmune cells release large amounts of proinflammatory cytokines that cause damage to the host. ARDS is characterized by an acute onset of non-cardiogenic pulmonary edema, hypoxemia, and the need for mechanical ventilation. Diffuse alveolar damage is the pathognomonic histologic finding. ARDS is the most common reason for patient admission to the intensive care unit and the main cause of mortality in patients with COVID-19 Reference: Chest CT in COVID-19: What the Radiologist Needs to Know Thomas C. Kwee and Robert M. Kwee RadioGraphics 2020 40:7, 1848-1865