Fig. 3
From: Imaging of head and neck mucosa-associated lymphoid tissue lymphoma (MALToma)
Magnetic resonance imaging of a 40-year-old woman with Sjögren’s disease and left parotid MALToma presenting with long-standing bilateral parotid swelling and 2 years increasing swelling on the left side. a Axial T1-weighted post-contrast image shows a moderately enhancing, homogenous lobulated left parotid mass (open arrow). Both parotid glands exhibit background changes of Sjögren’s disease. b Axial T2-weighted image with fat saturation shows a left parotid mass with intermediate signal intensity (open arrow). Both parotid glands exhibit background changes of Sjögren’s disease. c Axial apparent diffusion coefficient (ADC) map shows markedly restricted diffusion (open arrow) with a very low ADC value of 0.64 × 10− 3 mm2/s (white contour)