A 30-year-old woman comes to the physician for a 1-day history of sharp left-sided chest pain. She describes the pain as increasing slightly with deep inspiration. One week ago she had mild coryza without fever. Physical examination shows no marked pain with palpation. Reaching behind the back and over the head does not worsen the pain. Serum creatine kinase is mildly elevated. She has no past medical history. Which of the following is the most likely explanation for this patient’s findings?
A) Costochondritis
B) Fibromyalgia
C) Mitral valve prolapse syndrome
D) Pleurodynia
E) Viral pleurisy
