Pulmonary Langerhans cell histiocytosis

Area of Science:

• Pulmonology
• Oncology
• Pathology

Background:

• Langerhans cell Histiocytosis (LCH) is a rare clonal proliferative disease of Langerhans cells.
• Pulmonary involvement in LCH, particularly in adults, can present insidiously with diverse radiographic findings.

Observation:

• A 57-year-old male smoker presented with a two-year history of progressive dyspnea.
• Imaging revealed increasing pulmonary nodules predominantly in the upper lobes.

Findings:

• The clinical presentation and imaging findings raised suspicion for Langerhans cell Histiocytosis.
• Histopathological examination of lung biopsy confirmed the diagnosis of LCH.

Implications:

• This case highlights the importance of considering LCH in adult smokers with upper lobe predominant pulmonary nodules and dyspnea.
• Early diagnosis and appropriate management are crucial for patients with pulmonary Langerhans cell Histiocytosis.