CALR and synovial sarcoma: Opposing evidence, though, is demonstrated by the study of Haacke et al., where the presence of GCs in labial gland biopsies from patients that subsequently developed parotid MALT lymphoma was not identified as a predictive factor for lymphoma development, though only anti-SSA positive patients and only patients with parotid gland lymphoma were included in the study, not representing the diversity of SS patients [96].