"This is a summary article; we do not have a more in-depth reference article."
"pathophysiology"
"role of imaging"
"common pathology"
"US and CT are more sensitive and specific but not always required"
Expected headings
"This is a basic article for medical students and other non-radiologists"
"Chest radiograph"
"Ultrasound"
"CT chest"
"Pleural fluid describes fluid within the pleural space. Fluid may be simple fluid, pus, haemorrhage and therefore is a broad description that includes, but not synonymous with pleural effusion. Pus in the pleural space may become loculated and in some cases, may have solid elements."
"This is a summary article; we do not have a more in-depth reference article."
"is it infected (enhancement)? CT is best; ultrasound is less sensitive"