Malignant pericardial effusion involves fluid accumulation in which space?

Malignant pericardial effusion involves fluid accumulation in which space?

• A. In the Pleural Space
• B. In the Peritoneal Cavity
• C. In the Pericardial Sac Impairing Cardiac Function
• D. In the Epidural Space

Answer: (C)

Fluid builds up in the pericardial cavity, the space inside the pericardial sac that surrounds the heart. When malignant processes cause this fluid to accumulate, it can compress the heart and hinder its filling during diastole, leading to impaired cardiac function or tamponade. The other spaces—pleural around the lungs, peritoneal in the abdomen, and epidural around the spinal cord—are not involved in a pericardial effusion. So the relevant space is the pericardial cavity within the pericardial sac.

Fluid builds up in the pericardial cavity, the space inside the pericardial sac that surrounds the heart. When malignant processes cause this fluid to accumulate, it can compress the heart and hinder its filling during diastole, leading to impaired cardiac function or tamponade. The other spaces—pleural around the lungs, peritoneal in the abdomen, and epidural around the spinal cord—are not involved in a pericardial effusion. So the relevant space is the pericardial cavity within the pericardial sac.