Abstract
Arteriovenous malformations (AVM's) of the medial temporal lobe frequently involve the basal ganglia and the thalamus and, for this reason, are commonly judged to be inoperable. However, when the medial involvement is limited to the posterolateral part of the thalamus and to the inferior portion of the basal ganglia lateral to the internal capsule, the lesions may be excised safely. Three patients who underwent successful excision of AVM's of this region are presented. A transcortical surgical approach through the inferior portion of the temporal lobe was used to minimize retraction of the temporal lobe and damage to the optic radiation, and to avoid postoperative dysphasia. The following neuroradiological criteria indicate that the bulk of the lesion is in the temporal lobe, that only noncritical portions of the basal ganglia and thalamus are involved, and that, therefore, surgical resection is relatively safe: 1) primary supply by the anterior choroidal artery and by laterally oriented branches of the posterior cerebral artery; 2) primary venous drainage into the basal vein of Rosenthal and medial sylvian veins; 3) projection below the plane of the middle cerebral artery in the lateral carotid arteriogram; 4) projection lateral to the sweep of the posterior cerebral artery in the anteroposterior or Towne's view of the vertebral angiogram; and 5) demonstration of an intratemporal clot or intraventricular blood by computerized tomography.
| Original language | English |
|---|---|
| Pages (from-to) | 44-52 |
| Number of pages | 9 |
| Journal | Journal of Neurosurgery |
| Volume | 56 |
| Issue number | 1 |
| State | Published - Jan 1 1982 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Clinical Neurology
- Neuroscience(all)
Cite this
Arteriovenous malformations of the medial temporal lobe. Surgical approach and neuroradiological characterization. / Heros, Roberto.
In: Journal of Neurosurgery, Vol. 56, No. 1, 01.01.1982, p. 44-52.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Arteriovenous malformations of the medial temporal lobe. Surgical approach and neuroradiological characterization
AU - Heros, Roberto
PY - 1982/1/1
Y1 - 1982/1/1
N2 - Arteriovenous malformations (AVM's) of the medial temporal lobe frequently involve the basal ganglia and the thalamus and, for this reason, are commonly judged to be inoperable. However, when the medial involvement is limited to the posterolateral part of the thalamus and to the inferior portion of the basal ganglia lateral to the internal capsule, the lesions may be excised safely. Three patients who underwent successful excision of AVM's of this region are presented. A transcortical surgical approach through the inferior portion of the temporal lobe was used to minimize retraction of the temporal lobe and damage to the optic radiation, and to avoid postoperative dysphasia. The following neuroradiological criteria indicate that the bulk of the lesion is in the temporal lobe, that only noncritical portions of the basal ganglia and thalamus are involved, and that, therefore, surgical resection is relatively safe: 1) primary supply by the anterior choroidal artery and by laterally oriented branches of the posterior cerebral artery; 2) primary venous drainage into the basal vein of Rosenthal and medial sylvian veins; 3) projection below the plane of the middle cerebral artery in the lateral carotid arteriogram; 4) projection lateral to the sweep of the posterior cerebral artery in the anteroposterior or Towne's view of the vertebral angiogram; and 5) demonstration of an intratemporal clot or intraventricular blood by computerized tomography.
AB - Arteriovenous malformations (AVM's) of the medial temporal lobe frequently involve the basal ganglia and the thalamus and, for this reason, are commonly judged to be inoperable. However, when the medial involvement is limited to the posterolateral part of the thalamus and to the inferior portion of the basal ganglia lateral to the internal capsule, the lesions may be excised safely. Three patients who underwent successful excision of AVM's of this region are presented. A transcortical surgical approach through the inferior portion of the temporal lobe was used to minimize retraction of the temporal lobe and damage to the optic radiation, and to avoid postoperative dysphasia. The following neuroradiological criteria indicate that the bulk of the lesion is in the temporal lobe, that only noncritical portions of the basal ganglia and thalamus are involved, and that, therefore, surgical resection is relatively safe: 1) primary supply by the anterior choroidal artery and by laterally oriented branches of the posterior cerebral artery; 2) primary venous drainage into the basal vein of Rosenthal and medial sylvian veins; 3) projection below the plane of the middle cerebral artery in the lateral carotid arteriogram; 4) projection lateral to the sweep of the posterior cerebral artery in the anteroposterior or Towne's view of the vertebral angiogram; and 5) demonstration of an intratemporal clot or intraventricular blood by computerized tomography.
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M3 - Article
VL - 56
SP - 44
EP - 52
JO - Journal of Neurosurgery
JF - Journal of Neurosurgery
SN - 0022-3085
IS - 1
ER -