Can lung cancer spread to stomach?

Thanks for asking!: Gastric metastasis from primary lung cancer is very rare with a reported incidence of 0.2%-0.5%.

Yes: http://goo.gl/qyxxk4 "...The most frequent tumors involved in secondary gastric sites are melanoma, breast, and lung cancer..." http://goo.Gl/r2bnbz "...Reported that the incidence of gastric metastasis was 1.7% in 1010 autopsy cases and that the most common cancers metastasizing to the stomach were breast cancer, melanoma and lung cancer..." http://goo.Gl/tjkovg.