Abstract
A 35-year-old nonsmoker man presented complaining of productive and irritant cough for approximately 1 month. No history of fever, shortness of breath, weight loss, or other associated symptoms were present at admission. Physical examination, including careful evaluations of cardiovascular and respiratory systems, did not reveal any abnormalities. Past medical records (including allergies and occupational agent exposure) were also found to be unremarkable. A chest roentgenogram with frontal and lateral incidences and a blood sample analysis were therefore performed, but the reports of both these analyses were normal, demanding further imaging investigation.