AMP case report: Germline variant not present in tumor?
September 2025—A 68-year-old male with a history of multiple myeloma was discovered to have a 3-cm carotid body mass on PET/CT. Surgery was consulted and determined that the lesion was not amenable to surgery. Radiology favored the lesion to be a paraganglioma, so plasma metanephrine and normetanephrine were tested and were negative. With paraganglioma as the working diagnosis, germline genetic testing was performed.