Recurrent Lower Respiratory Tract Infections Due to Mounier-Kuhn Syndrome

Area of Science:

• Pulmonology
• Rare Diseases
• Medical Case Reports

Background:

• Mounier-Kuhn syndrome (MKS) is a rare congenital disorder characterized by tracheobronchomegaly, leading to recurrent lower respiratory tract infections.
• Diagnosis relies on clinical suspicion and radiographic evidence of enlarged trachea and bronchi.

Observation:

• A 72-year-old woman presented with a history of recurrent lower respiratory tract infections.
• The patient exhibited bronchiectasis and infections with multidrug-resistant organisms.

Findings:

• The case presented is consistent with Mounier-Kuhn syndrome, despite the patient's advanced age.
• The patient's presentation underscores the chronic and potentially severe nature of MKS, particularly with resistant pathogens.

Implications:

• This case emphasizes the importance of considering MKS in adults with unexplained recurrent respiratory infections and bronchiectasis.
• Early diagnosis and appropriate management, including symptomatic treatment and consideration of surgical options for persistent cases, are crucial for improving patient outcomes in Mounier-Kuhn syndrome.