Which signs are typical of SVC syndrome?

Which signs are typical of SVC syndrome?

• A. Nasal congestion, facial and upper-extremity puffiness, blue/purple skin discoloration
• B. Cough productive of foul-smelling sputum
• C. Abdominal distension and pain
• D. Palpitations and syncope at rest

Answer: (A)

Blockage of the superior vena cava causes blood from the head, neck, and upper limbs to back up, leading to edema and venous congestion in those regions. The typical signs are facial swelling and swelling of the arms, often with facial redness or fullness (plethora) and bluish skin from increased venous pressure and reduced oxygenation. Nasal congestion can occur due to edema of the nasal mucosa, and the blue/purple discoloration reflects this venous congestion. Together these features strongly point to SVC obstruction. The other options describe conditions that do not involve this pattern of upper-body venous congestion: a productive cough with foul sputum suggests an infectious or bronchiectatic process; abdominal distension and pain point to abdominal pathology; palpitations with syncope could stem from cardiac rhythm problems.

Blockage of the superior vena cava causes blood from the head, neck, and upper limbs to back up, leading to edema and venous congestion in those regions. The typical signs are facial swelling and swelling of the arms, often with facial redness or fullness (plethora) and bluish skin from increased venous pressure and reduced oxygenation. Nasal congestion can occur due to edema of the nasal mucosa, and the blue/purple discoloration reflects this venous congestion. Together these features strongly point to SVC obstruction. The other options describe conditions that do not involve this pattern of upper-body venous congestion: a productive cough with foul sputum suggests an infectious or bronchiectatic process; abdominal distension and pain point to abdominal pathology; palpitations with syncope could stem from cardiac rhythm problems.