**4.3 Factors for etiopathogenesis**

Scientists are still looking out for exact etiological factors and how these affect the growth of the tumor. Following factors should be considered:


growth factor (PDGF) have been implicated as most important factors for neoangiogenesis [28, 30]. AURKB, FGF18, and SUPT16H can act as potential molecular markers in JNA [31].
