Pituitary MRI (an approach) | Radiology Reference Article
Jul 18, 2023 · Key structures to identify and assess in every study include: pituitary gland including posterior pituitary bright spot and infundibulum. optic nerves, chiasm, and tracts. diaphragma sellae and boundaries of the pituitary fossa. boundaries of …
Pituitary gland protocol (MRI) | Radiology Reference Article ...
Jun 28, 2024 · MRI protocol for pituitary gland is a group of MRI sequences put together to improve sensitivity and specificity for the assessment of lesions of the pituitary gland (e.g. pituitary adenoma) and other sellar and suprasellar abnormalities (check the article on pituitary region masses for some examples). MRI is nowadays the imaging modality of ...
Pituitary MRI - normal study | Radiology Case - Radiopaedia
Pituitary MRI - normal study. mri. Technique: Multiplanar, multisequence imaging has been obtained through the brain including post contrast dynamic images through the pituitary fossa. Findings: The pituitary is normal in size, signal, and dynamic contrast enhancement.
Pituitary gland | Radiology Reference Article - Radiopaedia
Jul 8, 2024 · The pituitary gland sits atop the base of the skull in a concavity within the sphenoid bone called the sella turcica (pituitary fossa), immediately below the hypothalamus and optic chiasm. On average, the pituitary gland measures 12 mm in coronal diameter, 8 mm in AP diameter, and 9 mm high 13.
Pituitary apoplexy | Radiology Reference Article - Radiopaedia.org
Jul 18, 2024 · 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.
Pituitary macroadenoma | Radiology Reference Article
Jul 18, 2024 · Pituitary macroadenomas are the most common suprasellar mass in adults, and responsible for the majority of transsphenoidal hypophysectomies. They are defined as pituitary adenomas greater than 10 mm in size and are approximately twice as common as pituitary microadenomas .
Posterior pituitary bright spot | Radiology Reference Article
Citation, DOI, disclosures and article data. The posterior pituitary bright spot is the normal hyperintensity of the neurohypophysis on non-contrast T1 weighted MR images.
Pituitary adenoma/PitNET | Radiology Reference Article
May 22, 2023 · Pituitary adenomas or pituitary neuroendocrine tumours (PitNET) are primary neuroendocrine tumours that occur in the pituitary gland and are one of the most common intracranial neoplasms. Depending on their size they are broadly classified into: pituitary microadenoma: <10 mm in size. pituitary macroadenoma: >10 mm in size.
Pituitary microadenoma | Radiology Reference Article
Jul 17, 2024 · MRI. MRI is the mainstay of imaging for pituitary microadenomas and requires dedicated pituitary sequences (thin slice, small field of view, dynamic contrast acquisition). Contrast-enhanced MRIs have a sensitivity of 90%.
Lymphocytic hypophysitis | Radiology Reference Article
Jun 17, 2023 · Lymphocytic hypophysitis appears as an enhancing soft tissue mass involving the pituitary and extending into the suprasellar region. MRI. MRI, as is the case with other pituitary lesions, is the best modality for assessing this condition which appears as a pituitary region mass. T1. affected area is isointense with slight signal heterogeneity
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