Case presentation
A 24-year-old man consulted for cough and exertional shortness of
breath. He had no particular past history other than smoking at 5
pack-years, weaned for 5 months. His illness began three years earlier
by productive wet coughs with whitish sputum, sometimes abundant, which
evolved in a context of impaired general condition with asthenia,
anorexia, weight loss of 10 kilograms, and intermittent fever (not
quantified). He has not had any previous investigations. On admission,
the chest X-ray revealed bilateral, diffuse and polymorphic lung lesions
(Figure 1).