Pituatary macroadenoma - probable
Dimness of vision.
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There is enlargement of sella with a large well-defined lobulated mass lesion within the sella and extending into supra-sellar region, measuring approximately 3.7 (SI) x 3.4 (AP) x 3.1(TR) cm size. The pituitary gland and infundibular stalk are not separately identified from the lesion. Superiorly the lesion is compressing the optic nerves and optic chiasma. Inferiorly the lesion is causing thinning of floor of the sella with extension into sphenoid sinus. Laterally, the lesion is mild extending into right cavernous sinus and abutting the cavernous segment of right internal carotid artery.
The normal hyperintensity of the posterior pituitary gland is visualized on the T1W images in the posterior aspect of lesion.
- Boxerman JL, Rogg JM, Donahue JE et-al. Preoperative MRI evaluation of pituitary macroadenoma: imaging features predictive of successful transsphenoidal surgery. AJR Am J Roentgenol. 2010;195 (3): 720-8. doi:10.2214/AJR.09.4128 - Pubmed citation
- Cappabianca P, Cirillo S, Alfieri A et-al. Pituitary macroadenoma and diaphragma sellae meningioma: differential diagnosis on MRI. Neuroradiology. 1999;41 (1): 22-6. Neuroradiology (link) - Pubmed citation