[Clinical and morphological characteristics of lung sequestration]

Area of Science:

• Pulmonology
• Pathology
• Surgical Anatomy

Context:

• Lung sequestration is a rare congenital lung malformation with diverse clinical presentations.
• Understanding its morphological characteristics is crucial for accurate diagnosis and management.
• Previous studies have focused on specific aspects, but a comprehensive analysis of clinical and morphological features is needed.

Purpose:

• To investigate the clinical and morphological manifestations of lung sequestration.
• To analyze histological findings and compare them with other congenital lung malformations.
• To elucidate the pathological basis of lung sequestration.

Summary:

• This study examined 18 surgical lung sequestration cases (2017-2021) and 8 archival cases (1972-1994).
• Histological analysis revealed similarities with congenital adenomatous lung malformation type 2 and rhabdomyomatous dysplasia.
• The sequestered lung tissue showed loss of differentiation in respiratory and bronchial epithelium, with a predominance of the cystic variant and chronic inflammation.

Impact:

• The findings highlight the nonspecific nature of lung sequestration's morphology, emphasizing the need for careful histological evaluation.
• This research contributes to a better understanding of lung sequestration, aiding in differential diagnosis and potentially guiding treatment strategies.
• The study underscores the importance of considering inflammatory reactions and tissue remodeling in the pathological assessment of lung sequestration.