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

尽管两种肿瘤在形态学上极其相似，但是1号染体短臂上等位基丢失肿瘤比没有丢失药物敏感性要高得多。