病例报告:表现为上皮形态和异常免疫表型的原发性肺性拉布多米索尔科马 - 一个重要的诊断陷
Zonghua Wen1, Wenting Li1, Yao Liu2
1Department of Pathology, Shenzhen University General Hospital, Xueyuan AVE 1298, Nanshan District, Shenzhen, Guangdong Province, 518055, China.
Respiratory medicine case reports
|March 5, 2026
概括
原发性肺性拉布多米索尔科马异常罕见. 这一案例突出了由于异常特征的诊断挑战,包括甲状腺转录因子1的表达,模仿其他癌症.
科学领域:
- 在瘤学瘤学.
- 病理学 病理学 病理学
- 胸部外科手术 胸部外科手术
背景情况:
- 初级肺性狂宫肌瘤 (PPRMS) 是一种极为罕见的胸部瘤.
- 由于其组织学和免疫类型模仿其他恶性瘤,诊断困惑可能会出现.
研究的目的:
- 报告一个独特的肺部表皮状筋骨髓肉瘤病例.
- 讨论其不寻常的组织学和免疫类型特征所带来的诊断挑战.
- 强调免疫组织化学在准确诊断中的重要性.
主要方法:
- 一个60岁的男性患有巨大的肺质量病例报告.
- 胸腔镜右下叶切除术与中间淋巴结解剖.
- 组织病理学检查和广泛的免疫组织化学 (IHC) 染色,包括骨肌肉,神经内分泌和上皮标记物以及甲状腺转录因子1 (TTF-1).
主要成果:
- 最初的错误分类是冷截面上的差分化癌症.
- 组织学显示,上皮质细胞具有地理性亡,缺乏明显的体细胞特征.
- IHC证实了与胺,肌原蛋白和MyoD1.1的扩散表达的狂宫肌肉瘤诊断.
- 值得注意的是,瘤表现出扩散的TTF-1表达 (两个克隆),CD56,PGP9.5,以及焦点AE1/AE3,CAM5.2阳性.
结论:
- 这一病例代表了第一个报告的具有扩散TTF-1表达的上皮状狂肌肉瘤.
- 免疫类型,包括TTF-1和神经内分泌标记物,可以模仿差异化神经内分泌癌.
- 准确的诊断需要仔细整合组织学和全面的IHC分析,以克服诊断挑战.
相关概念视频
Abnormal Proliferation
5.3K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
5.3K
Rous Sarcoma Virus (RSV) and Cancer
6.5K
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
6.5K


