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Mesenchymal cystic hamartoma of the lung
C Leroyer1, J J Quiot, J D Dewitte
1Service de Pneumologie et Oncologie, Thoracique et Service, d'Anatomopathologie, CHRU Morvan, Brest, France.
Insights
A rare lung hamartoma was diagnosed in an asymptomatic man with multiple pulmonary nodules. Open lung biopsy confirmed mesenchymal cystic hamartoma, revealing mesenchymal cells and epithelial-lined cysts.
Area of Science:
- Pulmonology
- Thoracic Surgery
- Pathology
Background:
- Mesenchymal cystic hamartoma of the lung is a rare benign tumor.
- It often presents incidentally on imaging studies.
- Diagnosis typically requires histopathological examination.
Observation:
- An asymptomatic 51-year-old man presented with multiple pulmonary nodules on chest X-ray.
- An open lung biopsy was performed for diagnosis.
- The biopsy revealed nodules of mesenchymal cells and cysts lined by normal or metaplastic epithelium.
Findings:
- The histopathological findings confirmed the diagnosis of mesenchymal cystic hamartoma of the lung.
- The tumor demonstrated characteristic features of mesenchymal proliferation and cystic structures.
- This case highlights the importance of biopsy for definitive diagnosis.
Implications:
- This case contributes to the understanding of the clinical and pathological spectrum of pulmonary hamartomas.
- Early diagnosis and appropriate management are crucial for rare lung conditions.
- Further research into the pathogenesis and optimal treatment of this rare entity is warranted.
Abstract:
We report the case of an asymptomatic 51-year-old man, presenting with chest X-ray abnormalities consisting in multiple pulmonary nodules; the diagnosis of mesenchymal cystic hamartoma of the lung was made by an open lung biopsy, revealing both nodules of mesenchymal cells and cysts with a lining of normal or metaplastic epithelium. Clinical and pathological characteristics of this rare entity are reviewed.