Lungh cancer/breast cancer

My mother is a 55-year-old woman with a history of mandibular osteosarcoma treated since 93 by surgery (hemimandibulectomy) radiotherapy (55 gray) and methotrexate-based chemotherapy followed by a failed free fibula transplant attempt. Recently (at the end of 2018) she suffered from an excruciating dry cough, which was resistant to conventional bronchitis treatments. She consulted a pulmonologist who asked her for a chest CT scan and some tests to be done. The CT revealed a peripheral parenchymal tumor mass of the ventral segment of the culmen with pleural and scissural effusion of low abundance of left lateral adenotracheal adhesenomegalies, medial subcenterinal and left hilar mediastinal chain. CT biopsy yielded a primitive Adhenocarcinoma of the predominantly ascending lung. The petscan has shown in addition to that a contralateral lateral contralateral adenopathy (right) which eliminates the surgery at this stage (stage 3B). But also showed a hyper metabolic focus right breast. The mammo echo confirmed the presence of two foci within the right breast is an internal hamartoma of 5 cm seat of a suspicious mass macrolobulated and the other pre-orolar external centimetric suspect too. The examination is classified as BIRAD 5. The biopsy is done on the field and the primary results showed that both masses are carcinomatous pending immunohistochemistry which should be ready in two days. I am a dental surgeon and I know that the prognosis is a little dark but I try to have more ideas on what to do. I thank you in advance for your help and support.