Gastrointestinal Mesenchymal Neoplasms other than Gastrointestinal Stromal Tumors: Focusing on Their Molecular Aspects

<table>Schematic of platelet-derived growth factor receptor- (PDGFR-)related signaling pathways.  Mutations can lead to activation of PDGFR independent of ligand binding.  Numerous downstream pathways may lead to neoplastic advantages such as cell proliferation, growth, and survival.</table>

Pathology Research International

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Figure 6

Figure 6: Gastrointestinal Mesenchymal Neoplasms other than Gastrointestinal Stromal Tumors: Focusing on Their Molecular Aspects 