Fig. 2.

Growth curves of meningiomas.

Model-fitted meningioma growth curves given for 5 patients with benign meningothelial (A and C, light blue), fibrous (B and D, dark blue) and atypical meningiomas (E, red). The growth curves were estimated using nonlinear least-square with uniform weighting. Parameters were based on ¹⁴C measurements, histological data and on sequential MRI volumetric measurements (see Methods).