TBX19 and neoplasm: In normal tissues: epithelial cells (stem-like cells and hormone-secreting cells), immune cells (T, B, lymphoid), stromal (fibroblast, endothelial).In tumor tissues: PIT1-lineage PitNET, SF1-lineage PitNET, TPIT-lineage PitNET, and null cell tumor, and two clusters of tumor-associated macrophages.