[Multiple cavernous angiomas accompanied with a convexity meningioma: a case report].

We reported a rare case of multiple cavernous angioma accompanied with a convexity meningioma. A 41-year-old female developed generalized convulsion on October 8, 1985. Plain computed tomography (CT) scan revealed a round heterogeneous density mass in the right parietotemporal region, which was homogeneously enhanced. Angiography demonstrated a tumor stain fed by the right angular artery and the posterior branch of the right middle meningeal artery. Total removal of the tumor was performed. Since histological examination disclosed meningothelial cells, whorl formation, polymorphism and necrotic tissue, she received radiation therapy (total 50Gy) under the diagnosis of anaplastic meningioma. On November 10, 1988, she suddenly developed headache, nausea, motor weakness and homonymous hemianopia on the left side. CT scan revealed intracerebral hemorrhage (ICH) near the region where the meningioma used to be. Magnetic resonance image (MRI) demonstrated a high intensity mass at T1-weighted image and mixed intensity mass at T2-weighted image. Furthermore, there were multiple low intensity spotty lesions at the cerebral and cerebellar hemisphere in T1 and T2-weighted image. A few parts of these lesions showed central high intensity cores and perifocal low intensity areas, which were called ring formations or reticulated cores with black rims. The multiple lesions could not be detected by CT scan. ICH was evacuated. Histological examination revealed no specific pathology except necrotic tissue around the hematoma wall. Diagnosis of radiation necrosis was made. On October 25, 1992 she suddenly complained of left hemihypesthesia. CT scan demonstrated two high density spotty areas at the left caudate head and right thalamus. MRI showed these two lesions as reticulated cores with black rims.(ABSTRACT TRUNCATED AT 250 WORDS)