Of note, those groups of FOXL2+COL1A1+ cells, besides positivity for COL1A1, had higher expression of αSMA, PDGFRa, and FAP (Fig. 3G, frame 2) than FOXL2+COL1A1− tumor cells themselves (Fig. 3G, frame 1). The gene discussed is PDGFRA; the disease is neoplasm.