My grandmother has just had a nodule(2cm) in lung and another between liver and diaphram along with elevated wbc - what is probability of malignant?

Unable to determine: It is difficult to determine malignancy risk without having a tissue diagnosis from one of the nodules. Close follow up with a pulmonologist is advised to determine your malignancy risk (based on smoking hx, fam hx, etc) and create a management strategy such as (but not limited to) biopsy, imaging surveillance, need to see oncologist. An elevated WBC should be evaluated by your PMD.