What does nodular peripherad enhancement mean on a mri. my husband had a cancerous mass (adenocarcinoma of lung) removed from calcaneus previously?

More trouble : This most likely represent pulmonary metastatic disease.

If there was an: Original lung cancer, and a cancer found in a bone (calcaneus = heel bone), and now a "nodule" with "peripheral enhancement" some place, it is somewhat likely that it is a metastatic deposit from the original lung caner. Hs he had a pet scan? Is this a brain mr? A lot more questions than answers...See the doctor that ordered the mr for details and options.