Items tagged “pituitary”
76 results found
Article
Craniopharyngioma (historical)
Craniopharyngioma is a term used to denote two separate entities (adamantinomatous craniopharyngiomas and papillary craniopharyngiomas), both relatively benign (WHO grade 1) neoplasms that typically arise in the sellar/suprasellar region.
Terminology
Until the 5th edition (2021) of the WHO cla...
Article
Lymphocytic hypophysitis
Lymphocytic hypophysitis is an uncommon non-neoplastic inflammatory condition that affects the pituitary gland. It is closely related to other inflammatory conditions in the region, namely orbital pseudotumor and Tolosa-Hunt syndrome.
Epidemiology
Lymphocytic hypophysitis is seen most frequent...
Article
Pituitary gland
The pituitary gland (a.k.a. hypophysis cerebri), together with its connections to the hypothalamus, acts as the main endocrine interface between the central nervous system and the rest of the body.
Gross anatomy
The pituitary gland sits atop the base of the skull in a concavity within the sph...
Article
Pituitary apoplexy
Pituitary apoplexy is an acute clinical condition caused by either hemorrhagic or non-hemorrhagic necrosis of the pituitary gland. Although presentation is variable, it typically comprises headache, visual deficits, ophthalmoplegia, and altered mental status. An existing pituitary macroadenoma i...
Article
Pituitary stalk
The pituitary stalk, also known as the infundibulum or infundibular stalk, is largely outside the blood brain barrier like the rest of the pituitary and therefore normally enhances following the administration of gadolinium. It gradually tapers inferiorly, and superiorly is spread by the infundi...
Article
Pituitary stalk abnormal enhancement (differential)
Abnormal nodular enhancement of the pituitary stalk can be seen in a number of entities.
Differential diagnosis
tumors
germinoma
craniopharyngioma
hypothalamic glioma
pituitary lymphoma
pituicytoma
granular cell tumor of the pituitary (pituitary choristoma)
pilocytic astrocytoma of the...
Case
Pituitary apoplexy
Published
07 May 2008
62% complete
MRI
Case
Pituitary macroadenoma
Published
07 May 2008
86% complete
MRI
Case
Pituitary apoplexy
Published
19 May 2008
63% complete
CT
MRI
Article
Rathke cleft cyst
Rathke cleft cysts, also known as pars intermedia cysts, are non-neoplastic, sellar or suprasellar epithelium-lined cysts arising from the embryologic remnants of Rathke pouch in the pituitary gland. They are common lesions and usually incidentally identified.
Epidemiology
common, found in ~1...
Article
Inferior hypophyseal arterial circle
The inferior hypophyseal arterial circle, also known as the inferior capsular arterial rete, is an anastomotic arterial network formed around the base of the pituitary gland by branches from three vessels, themselves branches off the cavernous portion of the carotid artery. They are:
inferior h...
Case
Pituitary microadenoma
Published
02 Oct 2008
68% complete
MRI
Case
Pituitary macroadenoma - into sphenoid sinus
Published
17 Dec 2008
92% complete
MRI
Case
Rathke cleft cyst
Published
03 Jan 2009
78% complete
CT
MRI
Case
Papillary craniopharyngioma
Published
08 Jan 2009
98% complete
CT
MRI
Case
Pituitary macroadenoma - necrotic
Published
08 Jan 2009
92% complete
MRI
Case
Meningioma of tuberculum sella
Published
27 Jan 2009
80% complete
MRI
Case
Pituitary macroadenoma - null cell
Published
05 Feb 2009
92% complete
MRI
Case
Pituitary metastasis
Published
23 Sep 2009
100% complete
MRI
Case
Normal pituitary
Published
07 Dec 2009
48% complete
MRI