Figure 2. Photomicrographs of: A – Antemortem Tru-cut biopsy of the thoracic mass showing proliferating round cells (H&E stain, x200); B – Photomicrograph from post mortem lung section shows sheets of small round blue cells having peritheliomatous arrangement with extensive areas of necrosis (H&E stain, x200); C and D – the round to oval cells have stippled chromatin, indistinct nucleoli, scant cytoplasm(H&E stain, x200).
