Other factors, such as genetic variability may contribute to carcinogenesis and development of MM.3 Among asbestos-exposed workers, several familial cases of MM were described, emphasizing that genetic factors could contribute to MM development.4 In recent years, germline BRCA1-associated protein 1 (BAP1) mutations were shown to predispose to the development of MM and other cancers. The gene discussed is BAP1; the disease is cancer.