Hemangiopericytoma
Fig. 29.1 Hemangiopericytoma. (a) Sagittal T1-weighted gadolinium-enhanced image. (b) Coronal T1-weighted gadolinium-enhanced image. An enhancing mass is seen in the sellar and suprasellar region, arising from the region of the…
Pituitary Carcinoma
Fig. 19.1 Pituitary carcinoma. (a) Sagittal T1-weighted pre-gadolinium image. (b) Coronal T1-weighted post-gadolinium image. (c) Sagittal T1-weighted post-gadolinium image. (d) Coronal T1-weighted post-gadolinium image. There is a large, heterogeneously enhancing…
Gonadotroph Adenomas
Fig. 16.1 Gonadotropin-secreting adenoma. Gonadotropin-secreting adenomas or gonadotroph cell adenomas are characteristically chromophobic tumors (a) with diverse histopathological arrangements. Tumors may have papillary arrangements (b), nested arrangements (c), and focal…
Xanthogranuloma of the Sellar Region
Fig. 23.1 (a) Sagittal T1-weighted post-gadolinium image. (b) Coronal T1-weighted pre-gadolinium image. (c) Coronal T1-weighted post-gadolinium image. There is a lobulated cystic lesion in the sella containing T1 hyperintense material….
Ectopic Pituitary Adenomas
Fig. 20.1 Ectopic pituitary adenoma. (a) Sagittal T1-weighted post-gadolinium image. (b) Coronal T1-weighted post-gadolinium image. An enhancing lesion is located in the roof of the right sphenoid sinus (white arrow),…
Radiosurgery of the Sellar and Parasellar Region
Study Year Patients Prior surgical resection, % Radiosurgery F/U, mo Maximal dose, Gy Margin dose, Gy Tumor volume change, % Tumor control, % Neurologic deficit, % New hormone deficit, %…
Pituitary Physiology and Endocrinology
Hypothalamic hormone Main pituitary hormone Target organs Target hormones CRH Increases ACTH Adrenal gland Increases cortisol, DHEA, aldosterone, 17-hydroxyprogesterone GHRH Increases GH Liver Increases IGF-1 Somatostatin Inhibits GH GnRH Increases…
Pathology and Molecular Biology of the Pituitary Region
Tumor origin Specific entity Neuroendocrine tumors Pituitary adenoma Atypical adenoma Pituitary carcinoma Non-neuroendocrine tumors Pituicytoma Granular cell tumor Spindle cell oncocytoma Gangliocytoma Tumors of non-pituitary origin Craniopharyngioma Meningioma Chordoma Langerhans…
Speech and Swallowing Therapy
18 SPEECH AND SWALLOWING THERAPY SPEECH AND SWALLOWING ABNORMALITIES ASSOCIATED WITH MOVEMENT DISORDERS Speech and swallowing abnormalities occur frequently in patients with movement disorders. The evaluation and treatment of motor…
Parkinson’s Disease
4 PARKINSON’S DISEASE OVERVIEW OF PARKINSON’S DISEASE James Parkinson wrote and published “An Essay on the Shaking Palsy” in 1817.1 However, in India, paralysis agitans was described under the name…
