For the treatment of adult patients and children 3 years of age and above with Ph+ chronic myeloid leukaemia(Ph+ -CML) in chronic phase accelerated phase or blast crisis.Imatinib Teva is also indicated for the treament of :Adult patients with newly diagnosed Philadelphia chromosome positive acute lymphoblastic leukemia (Ph+ALL) integrated with chemotherapy.Adult patients with relapsed or refractory Ph + ALL as monotherapy.Adult patients with unresectable dermatofibrosarcoma protuberans (DFSP) and adult patients with recurrent and/or metastatic DFSP who are not eligible for surgery.Adult patients with myelodyspiastic/myeloproliferative diseases (MDS/MPD) associated with PDGFR ( platelet - derived growth factor receptor ) gene re- arrangements.Adult patients with hypereosinophilic syndrome (HES) and/or chronic eosinophilic leukaemia (CEL) who have the FIP1L1- PDGFRalfa fusion kinase (mutational analysis or FISH demonstration fo CHIC2 allele deletion) and for patients with HES and/or CEL who are FIP1L1-PDGFR alfa fusion kinase negative .Adult patients with aggressive systemic mastocytosis (ASM) without the D816V c-kit mutation.Imatinib Teva is also indicated for the treatment of adult patients with Kit (CD117) positive unresectable and/or metastatic malignant gastrointestinal stromal tumours (GIST)Imatinib Teva is also indicated for Adjuvant treatment of adult patients following complete gross resection of Kit (CD117) positive GIST.