A 28-year-old male presents with acute onset right-sided chest pain and dyspnea. Chest X-ray shows a collapsed right lung with a visible visceral pleural line. Which radiological feature best distinguishes a primary spontaneous pneumothorax from a secondary pneumothorax on imaging?

See the options, answer & explanation

Sign in free to reveal the answer choices, the correct answer, the detailed explanation, and AI-powered insights for this question.