Fig. 1From: Histopathological analysis of spontaneous large necrosis of adrenal pheochromocytoma manifested as acute attacks of alternating hypertension and hypotension: a case reportMagnetic resonance imaging (July 2009). Gadolinium-enhanced T2-weighted magnetic resonance imaging (a, early phase) indicated altered intensity in a 4-cm left adrenal tumor (arrow), and an area of high intensity was found along the periphery of the tumor, which persisted until the delayed phase (b)Back to article page