You really have to ask your physician.
This could be anything from a mild infection, to a a malignancy to tuberculosis, to artifact due to poor x-ray technique.
Don't assume you have cancer and jump to conclusions.
Pneumonia will sometimes show as a shadow that will disappear when the infection is cleared. The word "shadow" is meaningless in and of itself.
Generally an MRI or CT is prescribed as a followup, together will full blood work-up.
Thank you for answer. I appreciate.
I hope that yours turned out to be nothing serious. I went to the ER for the second time in a week last night. I went to a different hospital this time because the last hospital had no idea why i had severe pain in my abdomen or blood in my urine and they sent me home in pain. So four days later i went back again. Well this hospital preforms a ct scan looking for kidney stones. They found the kidney stones they were looking for. However they left me with this overwhelming fear after telling me that they seen a shadow on my lower left lung. I had 3 pictures taken so for the radiologist to say he didnt like what he seen, does that mean it was on all 3 pictures and does that mean there is something there. I'm a 25 year old mother of 2. My biggest fear in leaving this earth all too soon. My children need me. I need to be with them. I am so scared and I have been told to follow up with my normal doc. So i call and of course i cant be worked in until this afternoon. And she said that the doctor will read my ct scan and see what he wants to order up. *Does normal doctors know how to read those too??* I don't smoke so how could i possibly have anything wrong with my lungs!! Im just so scared i dont know what to thnk or to do. My husband says not to worry because its nothing. I wish i could thnk more him... but all i can be is mee... and meee I worry about everything. Please please pray that this is nothing, that I am healty and will live to be an old lady with my children, grandchildren and great grandchildren. After all nothing in life matters but family and love!!!