Fig. 3
From: Inter-observer agreement of baseline whole body MRI in multiple myeloma
Thickening of subcutaneous facia. Observer score variation within the skull due to thickening of subcutaneous fascia (arrows) shown by (a) axial b900 DW MRI and (b) axial in-phase Dixon MRI. High diffusion signal leads to a false positive report of a skull lesion (arrow a), in-phase Dixon images show the lesion to not be within the skull and instead relate to thickening of subcutaneous facia (arrow b). Synonymous to this we also found sub-occipital lymph nodes can lead to false positive reporting of focal lesions within the skull