primary or secondary lung cancer

is it more likely a person will survive if a lung cancer is primary or has spread from bones, also my mom had an inconclusive melanoma diagnosis 16 years ago two panels of pathologists could not agree one set said it was benign yumour in her  eye tthe second group said very low grade melanoma she has been checked every year at her cancer doctor and was just discharged last year due to no reoccurance and such good healyth now this this week they fiund tumur in left lung, do you think it could be from the melanoma she is nonsmoker, very healthy otherwise but does have aches and pains on knee and shoulder which goes away with excersise and physical therapy i am now worried she also has bone cancer she is only 63, everything says from what i have read that no one really lives beyond 2 years

[HeinrikMD]

Hi,

The likelihood of survival from a secondary cancer in the lung would depend on the nature of the primary cancer, it would be hard to generalize.

If we assume that there really was a melanoma in the eye and it was 16 years ago, it would be unlikely to be a metastasis from that.

Bone cancers may have secondary dissemination into the lung. However, most of these primary bone cancers occur in young (pediatric) ages, and hence, I am wondering if the bone cancer was the secondary cancer and not the primary.

Discuss all these points with your doctor as well. The result of the biopsy would play a major part.