An elderly male presents with headache, recurrent infections and multiple punched out lytic lesions of x-ray skull. Which of the following investigation will best help in establishing the diagnosis?

Name: An elderly male presents with headache, recurrent infections and multiple punched out lytic lesions of x-ray skull. Which of the following investigation will best help in establishing the diagnosis?
Published: 2024-04-14T20:24:09+05:30
Keywords: Medicine