Olfactory Neuroblastoma and Sellar Neuroblastoma

Mar 11, 2017 by in NEUROSURGERY Comments Off on Olfactory Neuroblastoma and Sellar Neuroblastoma

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…

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Spindle Cell Oncocytoma

Mar 11, 2017 by in NEUROSURGERY Comments Off on Spindle Cell Oncocytoma

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…

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Iatrogenic Pituitary Abscess

Mar 11, 2017 by in NEUROSURGERY Comments Off on Iatrogenic Pituitary Abscess

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…

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The Normal Pituitary Gland

Mar 11, 2017 by in NEUROSURGERY Comments Off on The Normal Pituitary Gland

Fig. 8.1 Sagittal T1-weighted image without contrast. (1) clivus; (2) pons; (3) third ventricle; (4) sphenoid sinus; (a) anterior pituitary gland; (p) posterior pituitary gland; asterisk indicates pituitary stalk Fig….

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Mucocele and Mucopyocele

Mar 11, 2017 by in NEUROSURGERY Comments Off on Mucocele and Mucopyocele

Fig. 53.1 Mucocele. Coronal T1-weighted precontrast MR image. The sphenoid is expanded and contains T1-hyperintense material. The normal pituitary gland is seen superior to the expanded sinus Fig. 53.2 Mucopyocele….

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Basilar Impression and Invagination

Mar 11, 2017 by in NEUROSURGERY Comments Off on Basilar Impression and Invagination

Fig. 71.1 Basilar impression/invagination. (a) Sagittal T1-weighted precontrast MR image. (b) Sagittal CT image. The clivus is hypoplastic, and there is incomplete segmentation of C2 and C3. The odontoid process…

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Lymphoma

Mar 11, 2017 by in NEUROSURGERY Comments Off on Lymphoma

Fig. 41.1 Sellar region lymphoma. (a) Sagittal T1-weighted image. (b) Coronal T1-weighted image. There is nodular thickening of the pituitary stalk with diffuse enlargement of the gland 41.3 Histopathology Sellar…

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Pituitary Hyperplasia

Mar 11, 2017 by in NEUROSURGERY Comments Off on Pituitary Hyperplasia

Fig. 9.1 (a) Sagittal T1-weighted image post gadolinium contrast enhancement. (b) Coronal T1-weighted image post gadolinium contrast enhancement. The pituitary gland exhibits homogeneous enhancement with a convex upper margin and…

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Duplication of the Pituitary Gland

Mar 11, 2017 by in NEUROSURGERY Comments Off on Duplication of the Pituitary Gland

Fig. 69.1 Duplication of the pituitary gland. (a) Sagittal T1-weighted MR scan shows hypothalamic thickening (arrow). (b) Coronal T1-weighted MR scan shows two separate anterior and posterior pituitary glands with…

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Juvenile Nasopharyngeal Angiofibroma (JNA)

Mar 11, 2017 by in NEUROSURGERY Comments Off on Juvenile Nasopharyngeal Angiofibroma (JNA)

Fig. 49.1 Juvenile nasopharyngeal angiofibroma (JNA). (a) Sagittal contrast-enhanced CT image. (b) Axial contrast-enhanced CT image. (c) Coronal contrast-enhanced CT image. (d) Sagittal precontrast T1-weighted MR image. (e) Axial T1-weighted…

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