Fig. 63.1 Dolichoectasia. (a, b) Axial T2-weighted MR images. (c) Maximum-intensity-projection (MIP) time-of-flight MR angiography. The intracranial internal carotid arteries appear ectatic, with marked tortuosity, in a 10-year-old boy with…
Fig. 37.1 Germ cell tumor. (a) Sagittal T1-weighted pre-gadolinium image. (b) Sagittal T1-weighted post-gadolinium image. (c, d) Coronal T1-weighted post-gadolinium image. There is a lobular, heterogeneously enhancing mass in the…
Fig. 61.1 Cavernous malformation (angioma). (a) Sagittal T1-weighted gadolinium-enhanced MR image showing a multilocular lesion with high signal intensity surrounded by a rim with low signal intensity, continuing anteriorly along…
Fig. 62.1 Cavernous-carotid fistula. (a) Axial T2-weighted MR image. (b) Time-of-flight intracranial MR angiography image. Arterial flow void is observed in the right cavernous sinus (a, arrowhead). The right globe…
Fig. 58.1 Neuromyelitis optica (NMO). (a) Coronal fat-saturated T1-weighted gadolinium-enhanced MR image. (b) Coronal inversion recovery image. (c) Sagittal T1-weighted gadolinium-enhanced image. The left optic nerve demonstrates edema (b) and…
Fig. 52.1 Allergic fungal sinusitis. (a) Sagittal T1-weighted precontrast image. (b) Sagittal CT image with contrast enhancement. (c) Coronal T1-weighted gadolinium-enhanced image. There is expansion of the sphenoid sinus containing…
Fig. 14.1 Silent corticotroph (ACTH) adenoma. (a, b) Sagittal T1-weighted post-gadolinium image. (c) Coronal T1-weighted post-gadolinium image. There is a large, heterogeneously enhancing sellar mass with suprasellar extension and encasement…
Fig. 38.1 Olfactory neuroblastoma. (a) Sagittal T1-weighted precontrast image. (b) Coronal T1-weighted gadolinium-enhanced image. (c, d) Axial fat-saturated T1-weighted gadolinium-enhanced image. There is a large, heterogeneously enhancing mass centered in…
Fig. 43.1 Spindle cell oncocytoma. (a) Sagittal T1-weighted gadolinium-enhanced MR image. (b) Coronal T1-weighted gadolinium-enhanced image. An enhancing mass centered in the sella is eroding the upper clivus, with suprasellar…
Fig. 75.1 Postoperative pituitary abscess. (a) Sagittal T1-weighted gadolinium-enhanced MR image. (b) Coronal T1-weighted gadolinium-enhanced image. A peripherally enhancing lesion in the sella displaces the pituitary stalk superiorly. The wall…
