Highlights
-Coexistence of SSc with MM is an unusual finding with unclear significance
-It is suggested that all patients with scleroderma should be screened for monoclonal gammapathy and MM regardless their age.
Contributors:   O A, G H, S B,A A and A E prepared and wrote the manuscript with the help of clinical information from M K. The final draft was reviewed and edited by M K.
Competing interests:  None.
Patient consent:  Obtained.