case_images: PMC4345650_01
case_images: (a) Coronal, (b) sagittal, and (c), axial images of chest computed tomography demonstrating a mass (arrow) invading the right pulmonary artery (PA). (d) Image obtained during endobronchial ultrasound-guided transbronchial needle aspiration showing the sampling needle inside the intra-arterial mass (arrow) within the lumen of the pulmonary artery
case_images: CJ-12-3-g001.jpg
case_images: PMC4345650_01_CJ-12-3-g001.jpg
case_images: F1
case_images: A PET-CT scan showed a hypermetabolic mass involving the right perihilar space [Figure 1].
case_images: The fixed smears demonstrate loosely cohesive clusters of spindled cells with irregular elongated nuclei (Papanicolaou)
case_images: CJ-12-3-g002.jpg
case_images: PMC4345650_01_CJ-12-3-g002.jpg
case_images: F2
case_images: The smears [Figures 2 and 3] and cell block [Figure 4] primarily showed loosely cohesive clusters of pleomorphic spindled and epithelioid cells.
case_images: The air-dried smears show pleomorphic cells; many have large, irregular nuclei and finely vacuolated cytoplasm (Diff-Quik)
case_images: CJ-12-3-g003.jpg
case_images: PMC4345650_01_CJ-12-3-g003.jpg
case_images: F3
case_images: The smears [Figures 2 and 3] and cell block [Figure 4] primarily showed loosely cohesive clusters of pleomorphic spindled and epithelioid cells.
case_images: The cell block preparation contains pleomorphic cells with spindled and epithelioid features (H and E)
case_images: CJ-12-3-g004.jpg
case_images: PMC4345650_01_CJ-12-3-g004.jpg
case_images: F4
case_images: The smears [Figures 2 and 3] and cell block [Figure 4] primarily showed loosely cohesive clusters of pleomorphic spindled and epithelioid cells.
case_images: The gross resection shows the lumen of the pulmonary artery completely occulted by tumor
case_images: CJ-12-3-g005.jpg
case_images: PMC4345650_01_CJ-12-3-g005.jpg
case_images: F5
case_images: The pulmonary artery resection showed a 5.9 cm x 5.7 cm x 4.1 cm mass involving the right main pulmonary artery and the right upper lobe of the lung [Figure 5].
case_images: (a) The resected tumor demonstrates spindled cells with a storiform pattern (H and E). (b). Higher magnification shows pleomorphic cells with convoluted to spindled nuclei, often containing nucleoli (H and E)
case_images: CJ-12-3-g006.jpg
case_images: PMC4345650_01_CJ-12-3-g006.jpg
case_images: F6
case_images: Histologically, some areas showed atypical spindled cells arranged in a storiform pattern [Figure 6] while other areas contained both pleomorphic spindled and epithelioid cells.