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Jerzy K. Garbacz, Karol Karpiński and Mariusz Kozakiewicz
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Nasir Raza Zaidi, Mian Waheed Ahmad and Riffat Mehboob
matter are not visible and despite improved sequences they remain largely undetected. Certainly, other factors such as poor visualization of these lesions with the conventional histological staining methods have played a role on disregarding these lesions [ 18 ].
Gadolinium (Gd), a paramagnetic element, (which has seven unpaired electrons in its electronicstructure) when chelated to, for example, diethylene-triaminepentaacetic acid (DTPA; one of a number of chelators currently used) to eliminate the toxic effects of free Gd, is used as contrast agent in MRI