"火疖子"到底是什么？马小玲介绍，这在医学上称为"疖"，是一种由金黄色葡萄球菌等细菌侵入毛囊及 周围组织所引起的急性化脓性炎症。"它和普通的痤疮其实很好区分，疖的感染更深，炎症反应更为剧 烈，通常表现为单发的、疼痛明显的体积较大的红色硬结，糖尿病患者及免疫功能较弱的人群可能多 发；而痤疮常常多发，可有粉刺、红丘疹或脓头等，炎症反应轻一点，病变范围相对疖来说一般小一 些。" 疖肿的发展迅速，数日内中心区域便会软化形成脓栓，如果处理不当，比如强行挤压，可能导致感染扩 散，形成多个疖融合的"痈"，或引发更广泛的蜂窝织炎，甚至细菌入血导致败血症。但大多数情况下， 疖在一定时间内可以自行破溃愈合，不需要就医。病情轻时，可外用抗生素软膏来促进炎症吸收。马小 玲提醒：如果已经化脓，一定要去医院由专业医生处理，切勿自行挤压，避免感染扩散。 通讯员 史月 南京晨报/爱南京记者 孙苏静 转自：南京晨报 近日，某演员在社交账号上发布视频，讲述了自己因为用针头给儿子挑"青春痘"，导致儿子需要去医院 进行手术，缝了四针的经历。视频中放了孩子患处的照片，在评论区，"火疖子"成了被广泛讨论的热 词，"我的火疖子也是被自己挤坏的，最后去手术 ...

Core Viewpoint - The article discusses a unique phenomenon observed in oranges, where one orange appears to have distinct sections resembling a mini basketball, attributed to a biological occurrence known as "chimera" [6][10]. Group 1: Biological Phenomenon - The term "chimera" refers to a single organism composed of two or more different genotypes, originating from a genetic mutation during cell division [6][10]. - This specific case of a "basketball orange" is identified as a sectorial chimera, where a mutation affects multiple cell layers (L1, L2, and L3), leading to clear visual distinctions in color and texture [14][15]. - The mutation can result in different flavor profiles within the same fruit, as evidenced by a study showing that the mutated sections can lose certain chemical components and even develop new compounds [17]. Group 2: Implications for Breeding - While such chimeras are often discarded in orchards due to their unusual appearance, they present valuable opportunities for breeding new varieties [20]. - Historical examples of successful varieties, like the red-fleshed grapefruit, originated from spontaneous mutations similar to chimeras [22]. - Modern biotechnological methods allow for the isolation and cultivation of mutated cells, potentially leading to stable new cultivars with desirable traits [26].