Fig. 44.1 Nasopharyngeal carcinoma (NPC). (a) Sagittal T1-weighted gadolinium-enhanced MR image. (b) Coronal T1-weighted gadolinium-enhanced image. A large enhancing mass is centered in the sphenoid sinus, replacing most of the…
Fig. 73.1 CSF leak. (a) Sagittal CT cisternogram image. (b) Coronal CT cisternogram image. Postoperative changes from prior right ethmoid resection and medial maxillary antrostomy are present. In both images,…
Fig. 1.1 Anatomical picture showing the posterior wall of the sphenoid sinus; all the anatomical landmarks are visible, but they may vary according to the degree of pneumatization of the…
Fig. 26.1 Dermoid cyst. (a) Sagittal T1-weighted post-gadolinium image. (b) Coronal T1-weighted post-gadolinium image. (c) Axial CT image. A lobulated mass is located above the planum sphenoidale anterior to the…
Fig. 31.1 Chordoma. (a) Coronal T1-weighted pre-gadolinium image. (b) Coronal T1-weighted post-gadolinium image. (c) Sagittal T1-weighted post-gadolinium image. (d) Coronal T2-weighted image. A large, lobular, heterogeneously enhancing mass is centered…
Fig. 13.1 ACTH adenoma. (a) Sagittal T1-weighted post-gadolinium image. (b) Coronal T1-weighted post-gadolinium image. The pituitary gland is enlarged, with heterogeneous enhancement and nodular erosion of the left sellar floor….
Fig. 11.1 Prolactinoma. (a) Sagittal T1-weighted post-gadolinium image. (b) Coronal T1-weighted post-gadolinium image. A small, hypoenhancing sellar mass is present in the left aspect of the sella. The mass abuts…
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…
