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  Indian J Med Microbiol
 

Figure 3: Pituitary macroadenoma with soft consistency. Axial T1W (a) and T2W (b) images show a large inhomogeneous, T1- and T2W isointense pituitary mass (arrow), encroaching bilateral cavernous sinus regions. On postcontrast coronal (c) and sagittal (d) images, the lesion exhibits moderate contrast enhancement. Left internal carotid artery (the cavernous part) appears to be displaced laterally by the mass, while the right internal carotid artery is seen traversing through the mass, which also shows invasion of ipsilateral cavernous sinus. However, both the arteries demonstrate normal contrast opacification with mild luminal compromise. On diffusion-weighted image (e) the lesion is hyperintense to the brain and has a low ADC value compared to normal brain parenchyma, (0.566 ± 0.109)×10-3 mm2/sec on apparent diffusion coefficient mapping (f)

Figure 3: Pituitary macroadenoma with soft consistency. Axial T1W (a) and T2W (b) images show a large inhomogeneous, T1- and T2W isointense pituitary mass (arrow), encroaching bilateral cavernous sinus regions. On postcontrast coronal (c) and sagittal (d) images, the lesion exhibits moderate contrast enhancement. Left internal carotid artery (the cavernous part) appears to be displaced laterally by the mass, while the right internal carotid artery is seen traversing through the mass, which also shows invasion of ipsilateral cavernous sinus. However, both the arteries demonstrate normal contrast opacification with mild luminal compromise. On diffusion-weighted image (e) the lesion is hyperintense to the brain and has a low ADC value compared to normal brain parenchyma, (0.566 ± 0.109)×10-3 mm2/sec on apparent diffusion coefficient mapping (f)