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

  Diagnosis probable
Frank Gaillard
Published 07 May 2008
62% complete
MRI
Case

Pituitary macroadenoma

  Diagnosis certain
Frank Gaillard
Published 07 May 2008
86% complete
MRI
Case

Pituitary apoplexy

  Diagnosis almost certain
Frank Gaillard
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

  Diagnosis probable
Frank Gaillard
Published 02 Oct 2008
68% complete
MRI
Case

Pituitary macroadenoma - into sphenoid sinus

  Diagnosis certain
Frank Gaillard
Published 17 Dec 2008
92% complete
MRI
Case

Rathke cleft cyst

  Diagnosis almost certain
Frank Gaillard
Published 03 Jan 2009
78% complete
CT MRI
Case

Papillary craniopharyngioma

  Diagnosis certain
Frank Gaillard
Published 08 Jan 2009
98% complete
CT MRI
Case

Pituitary macroadenoma - necrotic

  Diagnosis certain
Frank Gaillard
Published 08 Jan 2009
92% complete
MRI
Case

Meningioma of tuberculum sella

  Diagnosis certain
Frank Gaillard
Published 27 Jan 2009
80% complete
MRI
Case

Pituitary macroadenoma - null cell

  Diagnosis certain
Frank Gaillard
Published 05 Feb 2009
92% complete
MRI
Case

Pituitary metastasis

  Diagnosis certain
Frank Gaillard
Published 23 Sep 2009
100% complete
MRI
Case

Normal pituitary

  Diagnosis not applicable
Frank Gaillard
Published 07 Dec 2009
48% complete
MRI

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