Intracranial vertebral artery dissection presenting as subarachnoid hemorrhage: successful endovascular treatment.

Introduction: Intracranial vertebral artery dissection is a rare condition which may present as subarachnoid hemorrhage. In this situation, treatment is controversial.

Case Report: A case of intracranial right vertebral artery dissection in a 55-year-old woman presenting with subarachnoid hemorrhage is reported.

Response of blood pressure to maximum exercise in hypertensive patients under different therapeutic programs.

Objective: To evaluate the behavior of blood pressure during exercise in patients with hypertension controlled by frontline antihypertension drugs.

Methods: From 979ergometric tests we retrospectively selected 49 hypertensive patients (19 males). The age was 53+/-12 years old and normal range rest arterial pressure (< or = 140/90 mmHg) all on pharmacological monotherapy.

[Neurocysticercosis].

The neurocysticercosis is an infestation of the central nervous system by larvae of Taenia solium. The disease is endemic in a few countries of Latin America, Asia, and Africa and is becoming increasingly prevalent in the United States and Europe. The immigration of individuals from endemic areas and the tourism in these areas require a good knowledge of this disease.

Anomalous vessel in the middle ear: the role of CT and MR angiography.

An 8-year-old child was examined because of conductive hearing loss with a retrotympanic mass on otoscopy. CT and MR angiography showed a large inferior tympanic artery traversing the hypotympanum and joining a thin, irregular internal carotid artery with a normal middle meningeal artery. These investigations, coupled with knowledge of the embryological development allowed a diagnosis of a complex vascular anomaly in the middle ear and avoided potential surgical complications.

Endovascular treatment of intracavernous carotid aneurysm with hyperprolactinaemia.

A 42-year-old woman presented with headache, galactorrhoea, marked hyperprolactinemia and normal neurologic examination. CT, MR and MR-angiography showed an intracavernous carotid artery aneurysm with minimal displacement of the pituitary stalk. Treatment by embolisation using GDC coils allowed exclusion of the aneurysm.

[Magnetic resonance study of the pineal region. Normal pineal gland and simple cysts].

A magnetic resonance imaging (MRI) study of the normal pineal gland and pineal simple cysts was performed in 762 cases. A fine section technique (maximum 3 millimeters) enabled most of the times the identifying of a normal pineal in addition to demonstrating that a pineal without any cyst shows an isointense signal in T1 and T2 which, in turn, is enhanced following gadolinium. The measure of the normal pineal was of about 6.

Ophthalmic artery aneurysms: an investigation by duplex scan.

With the objective of analyzing the postaneurysmal peak systolic velocity (PSV) in ophthalmic arteries, duplex scanning was analyzed in 28 carotid-ophthalmic artery segments after exclusion of ipsilateral carotid stenosis. For comparison, the angiographic study of the extracranial and intracranial carotid system was utilized as the "gold standard." A subgroup of 7 subjects with 8 ophthalmic arteries with aneurysms identified where the artery leaves the internal carotid artery presented with PSVs significantly reduced (mean PSVs 17.

[Acute embolic stroke treated with rt-PA during elective coronary angiography].

A 56-year-old female with unstable angina, presented an acute embolic ischaemic stroke of right medium cerebral artery during elective coronary angiography. Complete patency was achieved after an intraarterial infusion of rt-PA (60mg/60min) with important functional improvement.

[Simple intraparenchymal cysts of the cerebellum. Apropos of 2 cases].

Introduction: Cysts of the posterior fossa are common in the literature, but the simple cyst is rarely considered in the differential diagnosis of these cysts.

Method: The cases of two female patients with clinical symptoms of expansive cerebellar lesion are described. These patients were explored by MRI.

[Orbital phlebography evaluation in 8 cases of Tolosa-Hunt syndrome].

Tolosa-Hunt syndrome (THS), or painful ophthalmoplegia is associated to a non-specific granulomatosis of unknown etiology, that involves the superior orbital fissure and its nervous and vascular structures. The clinical picture that responds to steroid therapy, is variable and is always associated with pain. Inflammatory conditions, tumors and aneurysms can produce similar symptoms.

[Secondary malignant tumors of the vestibulocochlear and facial nerves].

Introduction: Neuromas and meningiomas represent by far the most frequent tumors of the cerebellopontine cistern (respectively over 80% and over 10%). Secondary malignant tumors are exceptional.

Method: Presentation of four cases of malignant tumors of the cerebellopontine cistern, either revealing or complicating a primary tumor: a bronchial cancer, a cancer of the kidney, a medulloblastoma and a lymphoma.