"This pattern is due to the enhancement of the capillaries arising from the septa and perichondrium around the lesions1."
"This enhancement pattern is not described on CT, probably due to its low contrast resolution, and because the level of enhancement obtained with gadolinium is higher than that with iodinated contrasts2."
"This pattern is often seen in the periphery of the lesions and corresponds to the thin curvilinear T2 hyperintensities, and to the T1 hyperintense bands2"