All lung cancers, including adenocarcinoma, have similar symptoms. They include
a cough that doesn't go away
coughing up blood or mucus
shortness of breath
discomfort when swallowing
If the cancer has spread beyond the lungs, it can cause other symptoms. For example, you may have bone pain if it has spread to your bones.
Many of these symptoms can be caused by other conditions. See your doctor if you have symptoms so that the problem can be diagnosed and properly treated.