Does Pleural Effusion Increased Tactile Fremitus?

Tactile fremitus is pathologically increased over areas of consolidation and decreased or absent over areas of pleural effusion or pneumothorax (when there is air outside the lung in the chest cavity, preventing lung expansion).

Why does pleural effusion decreased tactile fremitus?

In case of pleural effusion and pneumothorax, air/fluid accumulates in the potential space between the chest wall and lung parenchyma, decreasing the transmission of lower frequency sound vibrations.

Why is tactile fremitus increased?

Increased intensity of tactile fremitus generally occurs as a result of increased density within the lung tissue. ... Other causes of increased tactile fremitus include partial or total collapse of a lung (known as atelectasis) or the presence of a solid mass in the lungs, such as a tumor.