What is the definition or description of: chest pain on deep breaths?

Injury or pleurisy: Costal or muscular injury of the thorax can emitt a sharp or dull chest pain. This may be caused from atheletics or unusal work. Pleurisy (a rubbing or sharp chest pain on inspiration) can be associated with an infection (pneumonia), a ruptured lung bleb, or unusal rare causes internally. Physical examination usually diagnoses the problem, and determines if a chest xray is needed.

Pleuritic pain: It's the classic description of pleuritic pain... pain resulting from inflammation or irritation of the pleura (the lining surrounding the lung); the inflammation is called pleurisy. But, not all pain with inspiration is pleuritic. Pneumonia, bronchitis, asthma, tracheitis, cancer...all can cause painful respiration. It's like saying "Not all hoofbeats are from horses...some are from zebras."