09 March 2021>: Articles
Challenging differential diagnosis, Rare diseaseGretchen A. Otero-Soto A* , Viviana Vidal-Anaya B , Eduardo J. Labat A
Am J Case Rep 2021; 22:e926749
Figure 3. (A) An axial pre-contrast T1-weighted sequence shows a right frontal, extra-axial, intrinsically T1-hyperintense lesion. (B) A post-contrast T1-weighted sequence shows a combination of intrinsic T1 hyperintensity and contrast enhancement. (C) An axial gradient recalled echo susceptibility-weighted sequence shows foci of susceptibility along the anteromedial portions of the lesion, which correlates with blood products. Note that areas of susceptibility do not correlate with areas of intrinsic T1 hyperintensity, indicating that the mass contains both melanocytic components and blood products.