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Interlaced fascicles of spindle-shaped cells with elongated (cigar-shaped) nuclei, some fields show atypical mitosis, others show wide areas of haemorrhage and necrosis. (A) Hematoxylin & eosin, X40. (B)(C) Hematoxylin & eosin, X60. (D) Hematoxylin & eosin, X4.