Hi and welcomet to HCM.
It isnt usual to discover breast cancer
in this age. ALso,most lumps are benign(95%) , usually adenomas which very rarely become malignant. Lump can be evaluated by ultrasounds and biopsy
, but considering her condition I think this isnt something that should worry you right now. It cant be harmful and dangerous for her life. The most important now is to facilitate her recovery from stroke
WIsh you good health and good luck.