Lung parenchymal calcifications in a child with cystic fibrosis

Area of Science:

• Pulmonology
• Pediatric Medicine
• Pathology

Background:

• Cystic Fibrosis (CF) is a genetic disorder affecting multiple organs, primarily the lungs.
• Homozygous p.Phe508del mutation is the most common CF genotype, often leading to severe lung disease.
• Bronchiectasis and obstructive lung disease are hallmark complications of advanced CF.

Observation:

• A 6-year-old female patient with severe, multi-lobar bronchiectasis and obstructive lung disease due to cystic fibrosis was evaluated.
• Computed tomography (CT) scan of the chest revealed significant parenchymal calcifications in the right middle lobe.
• Lung biopsy of the calcified area was performed for histopathological examination.

Findings:

• Histopathology demonstrated fibrous tissue with chronic inflammation.
• Immune cell infiltration included CD3+ T-lymphocytes and macrophages.
• No granulomas were observed, and dystrophic calcification was identified within necrotic debris.

Implications:

• This case highlights an unusual manifestation of cystic fibrosis with parenchymal calcifications.
• The findings suggest dystrophic calcification can occur in the context of chronic inflammation and necrosis in CF lung disease.
• Further research may explore the mechanisms and clinical significance of calcifications in severe pediatric cystic fibrosis.