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Figure 1: (a) gross picture of presternal mass measuring 10 × 8 × 4 cm with gray-white to brown cut surface; (b) histopathology revealed tumor cells arranged in nests and organoid patterns showing its neuroendocrine nature (H & E, 10×); (c) tumor showing increased mitotic activity (black arrow, H & E, 100×); (d) tumor shows focal areas of necrosis (black arrow, H & E, 10×)

Figure 1: (a) gross picture of presternal mass measuring 10 × 8 × 4 cm with gray-white to brown cut surface; (b) histopathology revealed tumor cells arranged in nests and organoid patterns showing its neuroendocrine nature (H & E, 10×); (c) tumor showing increased mitotic activity (black arrow, H & E, 100×); (d) tumor shows focal areas of necrosis (black arrow, H & E, 10×)