Relative to the primary tumor, LCTCs exhibited an increase in log2‐fold expression for GADD55a, BAMBI, STRP4, TSPAN7, DDIT3, IL1a, and CSF3 and a decrease in log2‐fold expression for COL1A2, COL5A1, COL5A2, PDGFRB, CARD11, GAQS1, IGF1, SFRP2, and COL3A1. The gene discussed is SFRP2; the disease is neoplasm.