Table 2.

Histological features of anaplasia (PXA‐AF)

	All	At first diagnosis	At recurrence
Total number of PXA‐AF cases	33	23	10
MI ≥ MI ≥ 5	8	5	3
MI ≥ N	2	2	0
MI ≥ MI ≥ 5 + N	13	8	5
MI ≥ MI ≥ 5 + N + EP	8	6	2
SlideSlides unavailable	2	2	0

EP = endothelial proliferation; MI = mitotic index; N = necrosis; PXA‐AF = pleomorphic xanthoastrocytoma with anaplastic features.