CTICasesSclerosing Pneumocytoma
Imaging findings
Chest CT in a 33-year-old female shows a well-circumscribed, heterogeneously enhancing 4 cm mass in the right lower lobe, surrounded by ground-glass opacity (hemorrhage). Biopsy shows epithelial cells positive for EMA and negative for CD34.
Key takeaways
Sclerosing pneumocytoma (formerly sclerosing hemangioma) is a rare benign lung tumor typically seen in young-to-middle-aged females. It is of epithelial origin (EMA positive) and characteristically shows strong, heterogeneous enhancement.
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