Acute Intestinal Obstruction Due to Dual-Component Metastasis of Combined Small Cell Lung Cancer: A Case Report with Literature ReviewWei Jiang 1 Xiaohui Zhou 2, Xizhang Zhu31Department of Pathology, Dianjiang General Hospital, Chongqing 408300, China2Department of Pathology, Traditional Chinese medicine hospital, Dianjiang. Chongqing 408300, China3 Department of Pathology, Dianjiang General Hospital, Chongqing 408300, ChinaCorresponding authors:Xiaohui ZhouDepartment of Pathology, Traditional Chinese medicine hospital, Dianjiang. Chongqing E-mail: 18372552328@126.comOther author’s email:Wei Jiang jw18875443902@126.comXizang Zhu 13896573689@163comKeywords: Combined Small Cell Lung Cancer (C-SCLC); Acute IntestinalObstruction; Tumor Metastasis; Heterogeneous Metastasis; Immunohistochemistry (IHC); Case report