case_images: PMC3736967_01
case_images: Initial MRI demonstrated a chest wall mass lesion with an intermediate signal on T1-weighted imaging (a) and an intermediate signal on T2-weighted imaging (b). The boundary between the mass lesion and muscle seemed clear
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case_images: The signal was isointense on T1-weighted imaging (T1WI) and hyperintense on T2-weighted imaging (T2WI) (Fig. 1).
case_images: MRI scan after 7 years of follow-up demonstrated a small subcutaneous mass lesion. The signal from both T1WI (a) and T2WI (b) was almost the same compared to the ordinary mass lesion
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case_images: The MRI signal of this subcutaneous mass was almost identical with the original mass (Fig. 2).
case_images: Both mass lesions exhibited high signals on DWI (a, c) and low signals on ADC maps (b, d)
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case_images: Diffusion-weighted imaging (DWI) was performed and both lesions exhibited high signal on DWI and a low apparent diffusion coefficient (ADC) (about 0.5) on the ADC map (Fig. 3).
case_images: Pathological findings of both original (a) and subcutaneous (b) mass lesions representing marginal zone B-cell malignant lymphoma (H&E stain)
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case_images: The mass lesions were both found to be marginal zone B-cell lymphomas (Fig. 4).    