Bronchial alveolar lavage was positive for Mycobacterium avium complex (MAC).

In Lady Windermere syndrome, the patient type is typically an elderly female with structural abnormalities of the rib cage.

Symptoms are a productive cough; fever and hemoptysis appear only in case of diffuse pulmonary impairment.

They are usually women who tend to suppress coughs with a consequent stagnation of secretions.

Sputum or bronchial alveolar lavage frequently are positive for MAC on microscopic examination.