Table 2.

Origin and mean percentages (± SD) of tumor, necrotic and fibrotic tissue of the brain metastases samples (n = 39), described by HES-staining after high resolution magic angle spinning (HR-MAS) analysis.

Origin Carcinomas of the Brain Metastases:	Tumor (%)	Necrosis (%)	Fibrosis (%)
Lung (n = 17)	49 ± 31	36 ± 34	12 ± 17
Colorectal (n = 11)	35 ± 24	48 ± 32	14 ± 23
Breast (n = 5)	25 ± 5	34 ± 30	35 ± 27
Malignant Melanoma (n = 6)	83 ± 15	8 ± 8	10 ± 15

n = number, HES = hematoxylin, eosin and saffron staining.