MALT lymphoma in labial salivary gland biopsy from Sjögren syndrome: importance of follow-up in early detection.

Nov 2012

Keszler A, Adler LI, Gandolfo MS, Masquijo Bisio PA, Smith AC, Vollenweider CF, Heidenreich AM, de Stefano G, Kambo MV, Cox DP, Narbaitz M, Lanfranchi HE.

Source

Associate Professor, Department of Oral Pathology, School of Dentistry, University of Buenos Aires, Buenos Aires, Argentina. Electronic address: akeszler@hotmail.com.

Abstract

Mucosa-associated lymphoid tissue (MALT) lymphomas are known to occur in Sjögren syndrome (SS) patients, but reported cases in labial salivary glands (LSG) are rare. We report a case of 60-year-old female patient with SS who developed MALT lymphoma in the labial salivary glands during a 2-year time interval when she was participating in the Sjögren's International Clinical Collaborative Alliance, an ongoing longitudinal multisite observational study funded by the National Institutes of Health of the United States. At follow-up exam, LSG biopsy showed atypical diffuse infiltration by mononuclear cells of variable size and atypical nuclei affecting the whole specimen with destruction of glandular architecture, leading to a diagnosis of B-cellMALT lymphoma. Computerized tomography and bone marrow biopsy failed to show additional evidence of disease. Clinical, serologic, ocular, histologic and immunohistochemical findings are presented. A "watch and wait" policy was adopted with regular examinations.

PubMed