Arteriovenous malformation associated with pleomorphic xanthoastrocytoma

Abstract

A case of a left temporo-occipital arteriovenous malformation associated with a pleomorphic xanthoastrocytoma is described. The patient had the vascular lesion with a stable right hemiparesis for many years prior to his recent clinical deterioration. Correlation is made with nine previously reported cases of angiogliomas. With the close proximity and temporal correlation of the two components of this lesion, as well as pathological evidence, the authors propose that angioglioma may be the product of reactive glial proliferation and transformation secondary to a pre-existing vascular malformation and hemorrhage.

Anaplastic oligo-astrocytoma occurring after resection of a cerebral cavernous malformation; malignant transformation? Case report and review on etiology

“…Alternatively, proliferation of oligodendroglial cells is common in cerebral vascular malformations [4]. In past years, several patients have been described with the combination of a brain tumor and a vascular malformation [5,13,16,17]. Reports are infrequent, and most refer to the combination of a glioma with an arteriovenous malformation.…”

Original article The coexistence of pleomorphic xanthoastrocytoma and arteriovenous malformation. A

“…The majority of vascular pathology in coexistence with gliomas consists of arteriovenous malformation (AVM), less often cavernous angioma. Only a few reports describe the coexistence of PXA and AVM [28]. The current case presents the lesion of two separate components of PXA and AVM, that are closely related and form a common tumour mass.…”

“…The coexistence of vascular malformation with PXA is extremely rare, especially in the context of these two patterns occurring within the same tumour mass. The particular pattern of PXA with angiogliomatous features has been reported [22] but only one case report refers to the true coincidence of PXA and AVM [28]. We present a 36-year-old woman with PXA of parasagittal localization in the right occipital lobe, which was accompanied by vascular changes fulfilling the morphological criteria of AVM.…”

Surgical strategy in case with co-existence of malignant oligodendroglioma and arteriovenous malformation: A case report

“…Concerning the histology of the brain tumors involved in these cases, there were 12 cases of pilocytic astrocytoma [27,40], 10 of astrocytoma [3,6,8,15,29,30,33,35,36], 6 of malignant astrocytoma [13,18,25,34,36], 20 of oligodendroglioma [4,9,10,20,24,27,38], 3 of glioblastoma [7,19,36], 8 of meningioma [10,11,16,17,21,22,26,32], 5 of acoustic tumors [12], and 3 of pleomorphic xanthoastrocytoma [28,31,39]. Other tumors found in association with AVM include hemangioblastoma [5], hemangiopericytoma [22], ganglioneuroma, [23] subependymal giant astrocytomas [29], and craniopharyngioma [14].…”

“…Accordingly, the relationship was judged as "separate". There have been only a handful of cases in which both the AVM and the brain tumor were preoperatively diagnosed using angiography and MRI [29,[31][32][33][34]. In some reported cases with intermixed AVM in the brain tumor, vascular components were pathologically diagnosed after the surgery.…”