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Biomedical subjects

R Ramina

Publications and source records attributed to R Ramina.

48 records · Page 3Linked to original sources
PubMed1990

Arterial graft reconstruction in an aneurysm of the middle cerebral artery.

A case of a large aneurysm of the middle cerebral artery that was treated by resection of the aneurysm sac and reconstruction of the vessel is presented. The middle cerebral artery was reconstructed using a graft from the superficial temporal artery (STA). Cerebral vessel reconstructions are usually carried out with veins as grafts. This paper shows the possibility of using the STA as a graft. When a vessel reconstruction is contemplated, the skin flap should be planned in order to save the STA.

Cerebral Revascularization↗
PubMed1990

Esthesioneuroblastoma with intracranial extension.

The authors present five cases of olfactory neuroblastoma with intracranial extension operated on in the Department of Neurosurgery in collaboration with otorhinolaryngologists. This tumor is most frequently reported as growing inside the nasal cavities, and it can extend to the paranasal sinuses. Cases presenting initially as intracranial tumors have been infrequently reported. At present, histological diagnosis of this tumor is aided by the use of electron microscopy and immunocytochemistry. Total resection combined with radiation therapy remains the most satisfactory treatment.

Adolescent↗
PubMed1989

[Glomus tumors of the temporal bone: a report of 6 cases].

The authors review the clinical, radiological and pathological features of 6 cases of glomus tumors of the temporal bone. Out of the 6 patients, 5 were female; age was distributed between 22 and 76 years (mean 48 years). The main clinical features were hypoacusia, tinnitus and otoscopic findings suggestive of the diagnosis. In one case was noted the concomitant presence of a neurinoma of the VIII cranial nerve with a ipsilateral glomus tumor, and in another case there was a concomitancy of carotid body tumor with temporal glomus jugularis tumor. Metastases were not observed in any case. Tumoral lesions were successfully ressected employing microsurgical techniques and a multidisciplinary staff involving neurosurgeons, head and neck surgeons and otolaryngologists. Radioteraphy was not employed, neither pre-operative embolization. Some aspects related to the nosology, embriology, pathophysiology, diagnosis and treatment of this interesting type of neoplasms are discussed.

Adult↗
PubMed1989

Severe optochiasmatic arachnoiditis after rupture of an internal carotid artery aneurysm.

The case of a 24-year-old man with progressive visual loss due to optochiasmatic arachnoiditis is presented. The cause of the arachnoiditis was subarachnoidal bleeding due to rupture of an internal carotid artery aneurysm. The aneurysm was clipped 5 years after the first episode of bleeding. The diagnosis of optochiasmatic arachnoiditis was confirmed during the operation. This case is presented in order to discuss the causes, the symptoms and the therapeutical possibilities of this rare condition.

Adult↗
PubMed1986

Cerebral cysticercosis presenting as mass lesion.

Four cases of cerebral cysticercosis that presented as brain tumor are reported. The diagnosis of these lesions was possible only after the operation. The clinical manifestations of these patients are discussed. The findings on computed tomography scanning as well as the possibilities for differential diagnosis are presented. All the patients were operated on and the diagnosis confirmed histologically. The difficulties encountered at the operations and the alternative methods for the treatment of these lesions are discussed.

Adult↗
PubMed1985

Malignant teratoma of the optic nerve: case report.

An unusual case of a malignant teratoma of the right optic nerve with extension into the chiasm is presented. The preoperative diagnosis was difficult to establish. Complete removal of the lesion with postoperative irradiation was carried out. Eight months after the operation, the patient developed subarachnoid metastases by the cerebrospinal fluid pathway as well as systemic metastases and died. No local recurrence of the tumor was seen at autopsy. The therapeutic possibilities for these lesions are discussed.

Adult↗
PubMed1984

Angiographically occult vascular malformations in functional areas of the brain. Diagnosis and treatment.

Acute non-traumatic intracerebral bleedings in young adults suggest strongly the presence of vascular malformation. CT Scan reveals the hemorrhage. Some features of the computed tomographic image seem characteristic for an angioma. Definitive diagnosis, however, can be made only after histological examination of the surgically removed tissue, when angiography fails to demonstrate the lesion. Authors advocate surgical management of the angiographically occult vascular malformations even in spite of their location in functional areas of the brain. Four cases are presented.

Adult↗
PubMed1980

[Delayed traumatic intracerebral hemorrhage. Report of 5 cases].

Five cases of traumatic delayed intracerebral hemorrhage are reported. At the admission two patients showed only contusional injury and three had acute intracranial hematomas, one with an extradural infratentorial and two with supratentorial hematomas, which were immediately removed. Repeated CT-scans revealed the delayed intracerebral hemorrhage. Three patients developed an intracerebral hemorrhage within the first 24 hours after admission. The possible mechanisms producing these lesions are discussed. The high mortality of these patients (four in our series) is associated with severe brain damage after the traumatism.

Adult↗