[Hemangiopericytoma of the lumbar spine].

Hemangiocytoma are rare malignant vascular tumor. Vertebral location is uncommun. They occur preferentially at the lumbo-sacrul spine with paravertebral extension.

[Imaging diagnosis of an unilateral painful ophtalmoplegia].

The ophtalmoplegia may be due to several lesions and the diagnosis is made by imaging modalities. We report the case of a giant aneurysm of the wright intracavernous internal carotid artery revealed by painful ophtalmoplegia with subarachnoid haemorrhage. The diagnosis was made by magnetic resonance imaging and angiography.

[Intradiploic hematoma: report of two cases and review of literature].

Diploic hematoma is an uncommon lesion which develops generally after minor head trauma. Only seven cases have been published so far and we are reporting two new cases of diploic hematoma in infancy. The diagnosis was made by computerized tomography and confirmed by histology.

[Cerebellar liponeurocytoma. Case report].

The cerebellar liponeurocytoma is a rarely and recently described tumour. It may be distinguished on the basis of neuroimaging findings that demonstrate the areas of fat density. Complete surgical removal with postoperative radiation therapy is recommended.

[Radiation-induced intracerebral cavernous angioma].

Recently, there have been several case reports of cavernous angiomas appearing after radiation to the brain, typically in children. The time interval between irradiation and the detection of the cavernous angioma varied from three to nine years and the doses from 24 to 60 grays. We report the appearance of a cavernous malformation in a young girl 3 years after radiation therapy for a brain tumor.