The tumor cells were negative for CKpan, EMA, S-100, HMB45, CD68, SMA, Desmin, ALK, CD117, DOG-1, Bcl-2, STAT6, LCA, CD30, CD15, and T-cell and B-cell markers (the information for each antibody is shown in Table 1). The gene discussed is ALK; the disease is neoplasm.