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号染色体短臂上等位基因丢失的肿瘤比没有丢失的药物敏感性要高得多。