Fig. 40.1 Plasmacytoma. (a) Sagittal T1-weighted precontrast image. (b) Axial T1-weighted precontrast image. (c) Axial T1-weighted gadolinium-enhanced image. There is an expansile, homogeneously enhancing mass replacing the entire clivus. The…
Fig. 42.1 Gangliocytoma in the presence of a prolactinoma. This sagittal T1-weighted gadolinium-enhanced MR image shows a heterogeneously enhancing mass of the sellar region with sellar expansion (Adapted with permission…
Fig. 67.1 Empty sella syndrome. (a, b) Coronal T1-weighted gadolinium-enhanced MR images. The pituitary gland appears flattened, with increased cerebrospinal fluid (CSF) space above the gland. The optic chiasm is…
Fig. 30.1 Schwannoma of the trigeminal nerve. Coronal T1-weighted gadolinium-enhanced MR image. A large enhancing mass is centered in the left parasellar region Fig. 30.2 Trigeminal schwannoma. (a) Axial T1-weighted…
Fig. 17.1 Pituitary apoplexy. (a) Sagittal T1-weighted pre-gadolinium image. (b) Coronal T1-weighted pre-gadolinium image. (c) Sagittal T1-weighted post-gadolinium image. (d) Coronal T1-weighted post-gadolinium image. Within the sella, there is an…
Fig. 54.1 Sellar tuberculoma. (a) Sagittal T1-weighted gadolinium-enhanced image. (b) Coronal T1-weighted gadolinium-enhanced image. A heterogeneously enhancing mass of the sella and suprasellar region is visualized. A patchy area of…
Fig. 57.1 Lymphocytic hypophysitis. (a) Sagittal T1-weighted gadolinium-enhanced MR image. (b) Coronal T1-weighted gadolinium-enhanced image. Nodular thickening involves the superior pituitary stalk. The pituitary gland appears normal in size Fig….
Fig. 48.1 Fibrosarcoma. Sagittal noncontrast MRI of the pituitary (arrows) shows a spontaneously sclerosing epithelioid fibrosarcoma extending superiorly to the optic chiasm (Adapted with permission from Massier et al. [11].)…
Fig. 34.1 Optic glioma. (a) Axial T2-weighted image. (b) Coronal T2 inversion-recovery (IR) image. (c) Axial T1-weighted gadolinium-enhanced image. The optic nerves are diffusely enlarged bilaterally, with enhancement extending to…
Fig. 46.1 Sinonasal adenocarcinoma. Coronal MRI shows an invasive mass (arrow) arising from the left middle turbinate, with extension to the ethmoid sinus, maxillary sinus, and floor of the orbit…
