The invention relates to particular crystalline forms of 2-methyl-2-[4-(3-methyl-2-oxo-8-quinolin-3-yl-2,3-dihydro-imidazo[4,5-c]quinolin-1-yl)-phenyl]-propionitrile, its hydrates and solvates, its salts and hydrates and solvates of its salts, certain processes for their preparation, pharmaceutical compositions containing these crystalline forms, and their use in diagnostic methods or, preferably, for the therapeutic treatment of warm-blooded animals, especially humans, and their use as an intermediate or for the preparation of pharmaceutical preparations for use in diagnostic methods or, preferably, for the therapeutic treatment of warm-blooded animals, especially humans.本發明係關於2－甲基－2－[4－(3－甲基－2－酮－8－喹啉－3－基－2,3－二氫－咪唑并[4,5－c]喹啉－1－基)－苯基]－丙腈、其水合物及溶合物、其鹽及其鹽之水合物及溶合物之特定結晶型式，製備彼等之特定方法，含有該等結晶型式之醫藥組合物，及其在診斷方法中或較佳用於治療溫血動物(尤其人類)之用途，及其作為中間體或用於製備醫藥製劑之用途，其中該等醫藥製劑係用於診斷方法中或較佳用於治療溫血動物(尤其人類)。
