Can someone please explain to me this medical report?

Its Lung Cancer type NON SMALL CELL LUNG CARCINOMA

Its primary cause in ur patient is da spread of remnants of da cancer cells ( called recurrence of disease ) and metastasis means cancer cells ve spreaded from breast tissues to lung parenchyma(lung tissue) and caused fluid accumulation in lungs . It causes difficulty breathing n restricting normal activities of life

Adenocarcinoma is da cancer of FLUID PRODUCING TISSUES(glands) .. So excessive proliferation of glands leads of xtra secretions n da All da issue thereafter

Acinar formation is da HistoPathological variant of da tumor cells

Well....your dear neighbor has lung cancer. Probably cells from her breast cancer now are invading her body/organs...