added nbme12 tag, directly answers the Q:
5-year-old boy is brought to the physician by his parents as a new patient because they are concerned that he may have an immunodeficiency. The patient has had six episodes of pneumonia and 10 episodes of sinusitis since birth. He underwent uncomplicated surgical drainage of the sinuses at the ages of 3 and 4 years. He had his first episode of otitis media at the age of 2 months and underwent uncomplicated placement of tympanostomy tubes at the age of 7 months. The patient’s previous leukocyte, lymphocyte, and platelet counts; serum immunoglobulin and CH50 concentrations; and diphtheria, tetanus, pneumococcal, and Haemophilus influenzae type b titers are within the reference ranges. CT of the chest is shown, what is the most likely diagnosis?
Ans: Primary ciliary dyskinesia
This is a rare congenital disorder characterized by defective cilia and an inability to clear mucus and debris from the airways, and can result in bronchiectasis (CT findings)