小肠转移瘤（肉眼）

最常见的小肠肿瘤是转移而来的，如图所示，包块导致了小肠梗阻。原发瘤主要位于附近的结肠、卵巢、胰腺和胃。
The most common neoplasm in small bowel is a metastasis as seen here. This mass caused local obstruction. Primary sites are often from nearby colon, ovary, pancreas, and stomach.