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Fig. 3C —57-year-old woman with Sjögren's syndrome and associated
mucosa-associated lymphoid tissue (MALT) lymphoma of parotid gland. Left
parotid gland was resected several years previously because of MALT lymphoma.
T1-weighted coronal MR image shows MALT lymphoma involvement (arrow)
of parotid gland responsible for progressive soft-tissue infiltration and
gadolinium enhancement manifesting as honeycombing. Differentiation of benign
lymphoepithelial lesions of parotid gland from MALT lymphoma infiltration
requires extensive sampling and immunochemical analysis. In AIDS patients,
MALT lymphoma can accompany benign lymphoepithelial lesions.