Which finding is typical of a lung hernia?

Which finding is typical of a lung hernia?

• A. Tender subcutaneous mass that enlarges with cough or Valsalva maneuver
• B. Wheezes on auscultation only
• C. Dry skin over the chest wall
• D. Painful erythematous rash on the chest

Answer: (A)

A chest wall bulge that is tender and becomes more prominent with coughing or a Valsalva maneuver is the telltale sign of a lung hernia. When intrathoracic pressure rises, part of the lung herniates through a defect in the chest wall and pushes outward, making the palpable lump enlarge with effort. This dynamic protrusion is what distinguishes a lung hernia from other chest findings. In contrast, wheezes on examination reflect airway narrowing and do not explain a movable chest wall mass. Dermatologic signs such as dry skin or a painful erythematous chest rash point to skin conditions rather than a herniated lung. Imaging would typically confirm the protrusion of lung tissue through the chest wall.

A chest wall bulge that is tender and becomes more prominent with coughing or a Valsalva maneuver is the telltale sign of a lung hernia. When intrathoracic pressure rises, part of the lung herniates through a defect in the chest wall and pushes outward, making the palpable lump enlarge with effort. This dynamic protrusion is what distinguishes a lung hernia from other chest findings. In contrast, wheezes on examination reflect airway narrowing and do not explain a movable chest wall mass. Dermatologic signs such as dry skin or a painful erythematous chest rash point to skin conditions rather than a herniated lung. Imaging would typically confirm the protrusion of lung tissue through the chest wall.