case_images: PMC4350833_01
case_images: Chest CT reconstructions in the axial, coronal, and sagittal planes (A, B, and C, respectively), showing a heterogeneous pleural mass with areas of low-attenuation (fatty tissue, arrows) in the left lower hemithorax.
case_images: 1806-3713-jbpneu-41-01-00103-gf01.jpg
case_images: PMC4350833_01_1806-3713-jbpneu-41-01-00103-gf01.jpg
case_images: f01
case_images: Chest CT revealed a heterogeneous pleural mass in the left lower hemithorax (Fig. 1).
case_images: Photograph of the gross specimen (A), demonstrating a well-circumscribed, encapsulated, soft, brown-to-yellow mass measuring 10 x 9 x 5 cm. Below, the photomicrograph (B) shows that, histologically, the tumor consisted of two tumor cell types: cells with granular intense eosinophilic cytoplasm; and clear multivacuolated cells filled with lipid droplets, with no evidence of cellular atypia or mitosis (hematoxylin and eosin staining; magnification, x200).
case_images: 1806-3713-jbpneu-41-01-00103-gf02.jpg
case_images: PMC4350833_01_1806-3713-jbpneu-41-01-00103-gf02.jpg
case_images: f02
case_images: The gross specimen showed a well-circumscribed, encapsulated, soft, brown-to-yellow mass, measuring 10 x 9 x 5 cm (Fig. 2A). The microscopic findings were diagnostic of a hibernoma (Fig. 2B).