Endo T, Kawaguchi N, Yashima M, Tei H, Hayakawa H
First Department of Internal Medicine, Nippon Medical School, Tokyo, Japan.
Intern Med. 1993 Jun;32(6):487-9. doi: 10.2169/internalmedicine.32.487.
An association between polymyositis-dermatomyositis (PM/DM) and malignancy has been reported. However, controversy exists regarding a direct causal relationship between the two diseases. We describe a patient who had had PM and subsequently developed non-Hodgkin's lymphoma, and discuss the possibility of their causal relation.