Neupsy Key

Fig. 15.1 Thyrotroph (TSH) adenoma. (a) Sagittal T1-weighted post-gadolinium image. (b) Coronal T1-weighted post-gadolinium image. A cystic, enhancing mass is present in the superior anterior part of the sella. There…

Fig. 32.1 Hemangioblastoma. (a, b) T1- and T2-weighted MRI scans taken 2 years prior to presentation. (c) This T1-weighted MRI scan reveals a partly vesicular, hyperintense, and slightly increased (vs…

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…

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…

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…

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….

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),…

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, %…

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…

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…