Planum sphenoidale meningioma
Updates to Study Attributes
A 4.1 x 4.2 x 2.7cm T1 and T2 isointense to brain non diffusion restricting floridly enhancing lesion with a small central area of non-enhancement without blooming has a broad based attachment with dural tail to the posterior floor of the anterior cranial fossa, moderately compressing and superiorly displacing the the inferior frontal lobes, right greater than left, with effacement of the frontal horn of the right lateral ventricle and midline shift of 8 mm to the left. Moderate vasogenic oedema in predominantly the right frontal white matter, crossing corpus callosum to involve the left frontal white matter. The mass lies anterior to the pituitary stalk, touching the pituitary supero-anteriorly. The origin of the right MCA touches the posterior aspect of this mass with normal flow void. The supraclinoid right ICA appears to be surrounded by more than 180 degrees; in the coronal post contrast sequence. Chiasm not well seen. No definite involvement of the orbital apex and cavernous sinuses. Meckel's caves appear uninvolved. Involvement of the roof of the sphenoid sinus and floor of the anterior cranial fossa however suspected.
Conclusion: Findings most in keeping with a large planum sphenoidale meningioma with significant positive mass effect.
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