  In this paper we study pattern formation arising in a system of a single
reaction-diffusion equation coupled with subsystem of ordinary differential
equations, describing spatially-distributed growth of clonal populations of
precancerous cells, whose proliferation is controled by growth factors
diffusing in the extracellular medium and binding to the cell surface. We
extend the results on the existence of nonhomogenous stationary solutions
obtained in the previous work of one of the authors to a general Hill-type
production function and full parameter set. Using spectral analysis and
perturbation theory we derive conditions for the linearized stability of such
spatial patterns.
