Radiology Anatomy of the Pituitary Gland
Learn about the normal structure and size of the pituitary gland, indications for imaging, and the best modalities to image it. Explore images depicting the anatomy, including the anterior and posterior lobes. Discover common pathologies like pituitary adenomas and understand the role of different imaging techniques such as CT scans, MRIs, and X-rays in evaluating pituitary disorders.
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Presentation Transcript
RADIOLOGY ANATOMY OF THE PITUITARY GLAND
NORMAL PITUITARY GLAND The gland is composed of two parts: Anterior lobe (adeno hypophysis) Posterior lobe (neuro hypophysis) Normal size: Weight: 0.5g Height: 4-16 mm Anterior posterior: 5-16 mm
INDICATIONS FOR IMAGING THE PITUITARY GLAND Hormonal dysfunction Cushing syndrome Growth abnormalities e.g. Growth hormone deficiency, acromegaly Visual abnormalities headache
What is best modality to image the pituitary gland ? A. X ray B. CT scan C. MRI D. US E. Nuclear medicine
What is best modality to image the pituitary gland ? A. X ray B. CT scan C. MRI D. US E. Nuclear medicine
1 2 3 4 5 6
1 2 1-Optic sulcus 2- Anterior clinoid process 3-Floor of sella turcia (Pituitary fossa) 4- Posterior clinoid process 5- Dorsum sella 6- Sphenoid sinus 3 4 5 6
4 3 5 2 6 1
4 3 1- pituitary gland 2- sphenoid sinus 3- optic chiasm 4- hypothalamus 5- pituitary stalk 6- claivus 5 2 6 1
NORMAL PITUITARY ADENOMA
2 3 1 4 5 6
2 3 1 4 5 6
Optic chiasm Pituitary stalk Pituitary gland Carotid artery Cavernou s sinus Sphenoid sinus
