<prompt> Pulsatile mets seen in w hich cancer-Lung cancerProstate cancerRenal cancerBreast cancer  <response>: Ans. is c i.e., Renal cancerPrimary tumours that may present as pulsating lesions:Telengiectatic osteogenic sarcomaAngioendotheliomaAngiosarcoma of boneAneurysmal bone cystGiant cell tumour rarelySecondary metastasis that may present as pulsating lesionsMetastasis from Renal cell carcinomaMetastasis from thyroid carcinoma. 