John R. Gaughen, Jr., M.D.

October 28, 2005


32-year-old male with a history of chronic upper and lower respiratory tract infections, including multiple pneumonias. History is also significant for infertility and progressive hearing loss.

Which of the following is the least likely diagnosis?

  1. Severe combined immunodeficiency

  2. Primary ciliary dyskinesia

  3. Cystic fibrosis

  4. Common variable immunodifficiency

  5. All of the above

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