Anatomy of the Sellar and Parasellar Region
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…
Sellar Region Epidermoid and Dermoid Cysts
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…
Chordoma and Chondrosarcoma
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…
Corticotroph (ACTH) Adenomas
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….
Prolactinomas
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…
Plasmacytoma
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…
Gangliocytoma and Ganglioglioma
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…
Empty Sella Syndrome
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…
Schwannomas of the Sellar and Parasellar Region
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…
Pituitary Apoplexy
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…
