ARDMS RDMS AB-Abdomen Question # 10 Topic 2 Discussion

A complex pleural effusion often contains internal septations or fibrin strands, distinguishing it from simple anechoic effusion. These septations suggest exudative processes such as infection, malignancy, or hemothorax.

According to Rumack’s Diagnostic Ultrasound:

“Complex pleural effusions demonstrate internal septations or loculations, often related to infection or malignancy.”