Figure 4.

Diffusion Weighted Images (DWI) and Apparent Diffusion Coefficient (ADC) maps of a patient affected by MPM. Different b values were performed (a: b = 50 s/mm²; b: b = 400 s/mm²; c: 800 s/mm²; d: ADC map) to assess persistent areas of signal restriction. (1a–1d) Black asterisk: previously treated malignant pleural mesothelioma (MPM) with persistence of diffusion restriction in the anterior portion of the lesion. (2a–2d) Diaphragmatic and mediastinal pleural thickening with evidence of pointillism on DWI.