Intracranial Meningiomas Revealed by Non-Traumatic Subdural Haematomas: A Series of four Cases

Abstract

The treatment should consist of the extirpation of the meningioma at the same time as the evacuation of the haematoma. If primary ITH from abnormal vessels is the source of SDH, complete meningioma resection should prevent the recurrence of SDH. Subdural membranes and haematomas should therefore be inspected for their intrinsic pathology, especially when there is no history of trauma.

Incidental bleeding meningioma

“…These hemorrhages are mostly associated with malignancy such as glioblastomas, oligodendrogliomas, and metastatic brain tumors. [123] Meningiomas is slow growing, usually benign, and extra-axial tumor arising from arachnoid cap cell.…”

Lipomatous Meningioma With Concomitant Acute Subdural Hematoma -Case Report-

“…7) However, a number of cases of meningioma have been associated with hemorrhage most frequently with subarachnoid hemorrhage, followed by intracerebral and intratumoral hemorrhage, and rarely with subdural hemorrhage. 1,[4][5][6]8,10,14,15,[19][20][21]23,24,[29][30][31] Only 15 cases of meningioma with acute subdural hematoma have been reported. 4,8,15,[19][20][21]23,24,[29][30][31] Angioblastic and malignant meningiomas tend to bleed more frequently, 21) but meningothelial meningioma accounts for most cases with hemorrhage.…”

“…1,[4][5][6]8,10,14,15,[19][20][21]23,24,[29][30][31] Only 15 cases of meningioma with acute subdural hematoma have been reported. 4,8,15,[19][20][21]23,24,[29][30][31] Angioblastic and malignant meningiomas tend to bleed more frequently, 21) but meningothelial meningioma accounts for most cases with hemorrhage. 4,8,15,[19][20][21]24,31) The terms``lipomatous meningioma'' and``lipoblastic meningioma'' have been used to designate a rare type of meningothelial neoplasm containing cells that resemble adipocytes or lipoblasts to varying degrees.…”

“…4,8,15,[19][20][21]23,24,[29][30][31] Angioblastic and malignant meningiomas tend to bleed more frequently, 21) but meningothelial meningioma accounts for most cases with hemorrhage. 4,8,15,[19][20][21]24,31) The terms``lipomatous meningioma'' and``lipoblastic meningioma'' have been used to designate a rare type of meningothelial neoplasm containing cells that resemble adipocytes or lipoblasts to varying degrees. [2][3][4][5]9,11,[13][14][15][16][17][18]22,25,27,28,32,33) The mechanisms underlying fat accumulation in meningioma remain unclear, but as meningothelial cells can differentiate along various mesenchymal cell lines, 26) lipidization is now regarded as a metaplastic change.…”

Atypical meningioma and acute subdural hemorrhage

“…[1] The most common sites of meningioma, associated with bleeding, are intraventricular and convexity. [12] The most common bleeding locations are intracerebral/intratumoral and subarachnoid space, followed by subdural space. [13] Convexity meningiomas are more likely to produce SDH.…”