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Alveolar adenoma with a single cyst: A case report
Hiroshi Matsui1, Takahiro Utsumi1, Natsumi Maru1
1Department of Thoracic Surgery, Kansai Medical University Hospital, Hirakata, Osaka 573-1010, Japan.
Medicine International
|March 13, 2024
Summary
Alveolar adenoma, a rare benign lung tumor, can be mistaken for cancer. This case highlights the diagnostic challenges and the importance of histopathology for accurate identification.
Area of Science:
- Pulmonology
- Oncology
- Pathology
Background:
- Alveolar adenoma is a rare, benign pulmonary neoplasm originating from type II pneumocytes.
- It typically presents as an incidentally discovered peripleural, solitary, cystic lung nodule.
- Pre-operative diagnosis is challenging due to its potential to mimic other lung malignancies.
Observation:
- A 50-year-old male presented with a gradually enlarging nodule within a cystic lesion in the left lung.
- Initial imaging suggested lung cancer or aspergilloma due to the nodule's well-defined, solitary, and solid characteristics.
- Thoracoscopic wedge resection was performed for diagnostic and therapeutic purposes.
Findings:
- Histopathological examination confirmed the diagnosis of alveolar adenoma.
- No evidence of malignancy was found, and cultures were negative.
- The patient experienced an uncomplicated post-operative recovery.
Implications:
- This case underscores the diagnostic difficulties associated with alveolar adenoma.
- Accurate diagnosis relies on definitive histopathological and immunohistochemical analyses.
- Early and correct diagnosis is crucial for appropriate patient management and avoiding unnecessary aggressive treatments.
