[Bronchectasis in Horton's disease: fortuitous association?]

Area of Science:

• Internal Medicine
• Pulmonology
• Rheumatology

Background:

• Horton's disease, also known as Giant Cell Arteritis, is a systemic vasculitis primarily affecting medium and large arteries.
• Respiratory manifestations are considered uncommon in the clinical presentation of Horton's disease.

Observation:

• A 63-year-old male with a recent diagnosis of Horton's disease presented with fever, malaise, cough, and hemoptysis.
• Initial chest X-ray revealed a right upper lobe infiltrate and bilateral basal cystic opacities suggestive of bronchiectasis.
• CT scan confirmed the presence of secondary bronchiectasis.

Findings:

• This case highlights an unusual association between Horton's disease and bronchiectasis.
• While pulmonary infiltrates and corticosteroid-responsive symptoms are known in Horton's disease, bronchiectasis is a novel finding.
• The underlying pathogenetic mechanism linking Horton's disease and bronchiectasis requires further investigation.

Implications:

• This report expands the spectrum of known respiratory complications in Horton's disease.
• It underscores the importance of considering pulmonary involvement, including rare conditions like bronchiectasis, in patients with Horton's disease.
• Further research is needed to elucidate the etiological link and guide clinical management.