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Rounded atelectasis: diagnosis by fine-needle aspiration cytology
W T Miller1, P K Gupta, M A Grippi
1Department of Radiology, University of Pennsylvania Medical Center, Philadelphia 19104-4283.
Diagnostic Cytopathology
|January 11, 1992
Summary
Rounded atelectasis, a rare benign lung condition often linked to asbestos exposure, can be diagnosed via fine-needle aspiration (FNA) cytology. This method aids in differentiating it from lung cancer when imaging is inconclusive.
Area of Science:
- Pulmonology
- Cytopathology
- Radiology
Background:
- Rounded atelectasis is a rare, benign pleural-based lung mass.
- It is frequently associated with asbestos-related pleural disease.
- Radiographic differentiation from bronchogenic carcinoma can be challenging.
Observation:
- This study presents two cases diagnosed via fine-needle aspiration (FNA) cytology.
- Cytologic findings included pulmonary parenchyma, thickened alveolar walls, macrophages, and connective tissue.
- These features are indicative of rounded atelectasis.
Findings:
- Fine-needle aspiration (FNA) cytology provides a definitive diagnosis for rounded atelectasis.
- Characteristic cytologic findings can be identified.
- Sufficient tissue sampling, potentially with cutting needles, is crucial.
Implications:
- FNA cytology is a valuable tool for diagnosing rounded atelectasis, especially when imaging is ambiguous.
- Accurate diagnosis prevents misclassification as malignant neoplasm.
- This diagnostic approach is particularly relevant in patients with asbestos exposure history.