Lung biopsy in chronic lymphocytic leukemia

Area of Science:

• Pulmonology
• Oncology
• Pathology

Background:

• Pulmonary involvement is a recognized complication of chronic lymphocytic leukemia (CLL).
• Patients with CLL may present with respiratory symptoms and interstitial infiltrates on chest imaging.
• The specific pathological patterns and causative agents of pulmonary disease in CLL require further elucidation.

Purpose of the Study:

• To investigate the clinical presentation, pathological findings, and treatment outcomes of pulmonary involvement in patients with chronic lymphocytic leukemia (CLL).
• To determine the role of CLL as the primary cause of pulmonary disease versus incidental findings.
• To assess the response to therapy in CLL patients with lung involvement.

Main Methods:

• Retrospective review of nine patients with biopsy-proven pulmonary involvement and chronic lymphocytic leukemia (CLL).
• Analysis of clinical symptoms, chest radiographic findings, and histopathological examination of lung biopsies.
• Review of microbiological culture results and treatment regimens, including chemotherapy and steroid therapy.

Main Results:

• Eight out of nine patients had CLL identified as the predominant cause of pulmonary disease, characterized by dense lymphocytic infiltrates along bronchovascular bundles.
• One patient had nonspecific organizing pneumonia with incidental CLL findings.
• Respiratory symptoms and interstitial infiltrates improved following chemotherapy and/or steroid therapy in all patients.

Conclusions:

• Chronic lymphocytic leukemia (CLL) is a significant cause of pulmonary disease in affected patients, manifesting with interstitial infiltrates and respiratory symptoms.
• Lung biopsies are crucial for differentiating CLL-related lung disease from other pulmonary conditions.
• Chemotherapy and steroid therapy are effective in managing pulmonary complications associated with CLL.