Feature Summary of Papillary Adenoma
- Exceedingly rare, benign peripheral lung tumor
- Predominantly in man with wide age range
- Circumscribed peripheral nodule
- Papillary, fibrovascular cores
- Single layer of bland lining epithelium
- Positive for TTF1 and cytokeratins
- Main differential diagnoses include alveolar adenoma, and adenocarcinoma
- Complete resection curative
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