Which condition is included in the differential diagnosis for hemoptysis?

Which condition is included in the differential diagnosis for hemoptysis?

• A. TB
• B. Osteoarthritis
• C. Migraine
• D. Hypertension

Answer: (A)

Hemoptysis requires considering diseases that affect the airways and lung tissue. Tuberculosis is a classic infectious cause of coughing up blood because Mycobacterium tuberculosis can create cavitary lung lesions that erode into bronchi and nearby vessels, leading to bleeding. This mechanism makes TB a key part of the differential, especially in patients with exposure risk or in regions where TB is more common. The other options don’t typically produce pulmonary bleeding: osteoarthritis affects joints, migraine is a neurologic condition, and hypertension doesn’t directly cause alveolar or airway bleeding.

Hemoptysis requires considering diseases that affect the airways and lung tissue. Tuberculosis is a classic infectious cause of coughing up blood because Mycobacterium tuberculosis can create cavitary lung lesions that erode into bronchi and nearby vessels, leading to bleeding. This mechanism makes TB a key part of the differential, especially in patients with exposure risk or in regions where TB is more common. The other options don’t typically produce pulmonary bleeding: osteoarthritis affects joints, migraine is a neurologic condition, and hypertension doesn’t directly cause alveolar or airway bleeding.