Despite a high morphological similarity, tumors with allelic loss on the short arm of chromosome 1 (1pLOH) are more chemosensitive than those without 1pLOH.

尽管两种肿瘤学上极其相似，但是1号染色体臂上等位基因失的肿瘤比有失的药物敏感性要高得多。