HOXD-AS2 and neoplasm: Interestingly, we found that the tumor foci with the lowest HOXD‐AS2 expression (Foci D) showed no recurrent neoplasm, whereas the tumor foci with higher HOXD‐AS2 expression (Foci A, B, and C) manifested obvious recurrences, suggesting that HOXD‐AS2 might play an important role in chemo‐resistance.