Basic and Clinical Sciences (BCSE) Practice Exam

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What type of pain might occur due to pleural extension in lung cancer?

  1. Sharp, localized pain

  2. Dull, aching persistent pain

  3. Stinging pain

  4. Intermittent throbbing pain

The correct answer is: Dull, aching persistent pain

The type of pain that is typically associated with pleural extension in lung cancer is characterized by a dull, aching persistent sensation. This type of pain arises because lung cancer can lead to involvement of the pleura, the protective lining around the lungs, which can cause irritation and inflammation. The dull, aching quality reflects the nature of visceral pain associated with deeper structures such as the lungs and pleura, where the sensation is less sharp and more generalized compared to pain originating from the body's surface or more localized tissues. Moreover, a dull, persistent ache can signify the ongoing process of the disease and the impact it has on surrounding structures, indicating the growth of the tumor or involvement of other anatomical areas. This differs from sharp or stinging pains, which might be more indicative of acute issues or nerve-related pain, and from intermittent throbbing pain, which is often associated with vascular conditions. The patient’s experience of a continuous and dull ache highlights the chronic nature of the condition when lung cancer invades the pleura, making persistent aching pain the most accurately reflective symptom in this scenario.