Fig. 7From: An update of pitfalls in prostate mpMRI: a practical approach through the lens of PI-RADS v. 2 guidelinesAxial T2-weighted image (a) that shows a hypointense area at the prostate base, in the peripheral zone. This aspect is a variant/extension of the moustache sign, in which the central zone is compressed between the transitional and peripheral zones, adopting a teardrop shape, as represented by the yellow area in the coronal T2-weighted image (b)Back to article page