RT Journal Article SR Electronic T1 Changes in salivary gland immunohistology and function after rituximab monotherapy in a patient with Sjögren’s syndrome and associated MALT lymphoma JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 958 OP 960 DO 10.1136/ard.2004.030684 VO 64 IS 6 A1 J Pijpe A1 G W van Imhoff A1 A Vissink A1 J E van der Wal A1 P M Kluin A1 F K L Spijkervet A1 C G M Kallenberg A1 H Bootsma YR 2005 UL http://ard.bmj.com/content/64/6/958.abstract AB Objectives: To report the successful use of rituximab on salivary gland immunohistology and function in a patient with Sjögren’s syndrome (SS) and associated MALT lymphoma. Case report: The patient was a 42 year old woman with primary SS and associated MALT lymphoma located in the parotid gland and the hard palate. Four infusions of rituximab (375 mg/m2) weekly resulted in complete remission of the lymphoma. An incision biopsy of the parotid gland before and after treatment showed improvement of the (immuno)histopathological characteristics of SS, with possible regeneration of salivary gland tissue. Furthermore, salivary analysis showed decreased inflammatory characteristics and increased stimulated salivary flow. Discussion: Rituximab is a promising agent in the treatment of SS associated MALT lymphoma. In addition to the effect on MALT lymphoma, B cell depletion by rituximab may also attenuate the activity of SS. This case report is the first to describe the effect of rituximab on histological and sialometric/chemical characteristics of SS. The efficacy of rituximab in the treatment of SS warrants further investigation.