The term angiomatous is applied to the subgroup of meningiomas, in which numerous vessels prevail on the background of an otherwise typical meningioma.
Such extremely vascularized meningiomas are rarely encountered. It is a generally held belief that the term angiomatous is more a descriptor than a diagnosis and has no prognostic or any other clinical significance.
See also
References
Hasselblatt M, Nolte KW, Paulus W. Angiomatous meningioma: a clinicopathologic study of 38 cases. Am J Surg Pathol. 2004 Mar;28(3):390-3. PMID: 15104303