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Biomedical subjects

A F Marliani

Publications and source records attributed to A F Marliani.

7 recordsLinked to original sources
PubMed1994

Arterial anomalies of the middle ear associated with stapes ankylosis.

An aberrant internal carotid artery in a young woman complaining of pulsatile tinnitus and conductive hearing loss was diagnosed pre-operatively by CT scan and angiographic findings. An exploratory tympanotomy was performed in order to evaluate the cause of the severe conductive hearing loss. It was possible to detect a large persistent stapedial artery associated with a stapedial fixation of unknown cause. Despite these vascular anomalies a stapedotomy was performed successfully.

Adult↗
PubMed1991

Magnetic resonance imaging of hypothalamic hamartomas causing gelastic epilepsy.

Hypothalamic hamartomas may cause a peculiar epileptic syndrome characterized by seizures of laughter and precocious puberty. Four mentally handicapped patients suffering from gelastic epilepsy were referred to our institution for investigation; three of them also presented with precocious puberty. In all four cases magnetic resonance imaging (MRI) revealed a space-occupying lesion of the hypothalamus that was considered to be a hamartoma. Biopsies were not performed. Hamartomas appear isodense in plain computed tomography scans, and they do not enhance. Such lesions display an isointense signal in T1-weighted magnetic resonance images and a hyperintense signal in proton density and T2-weighted images. MRI is the procedure of choice for detecting such lesions at the base of the brain.

Adolescent↗
PubMed1986

Fifty-five thousand cerebral angiographies.

A large series of patients submitted to cerebral angiography at the Bellaria Hospital in Bologna are presented in a preliminary report. Experience gained is discussed from the standpoints of success versus failure and of the complications. It is concluded that direct percutaneous cerebral angiography, if used selectively, still has a role to fill in a modern neuroradiology department, because of its safety. It is especially well suited for the examination of older patients. For angiography of the external carotid and the vertebral artery femoral catheterization is more suitable.

Cerebral Angiography↗
PubMed1984

Angiographic technique in extra-intracranial arterial bypass for cerebral ischemia.

Angiography is indispensable for the selection of appropriate candidates for extra-intracranial arterial bypass (E.I.A.B.). It allows the visualization of ICA and/or MCA occlusion or inaccessible stenosis which are considered indications for E.I.A.B. Complete angiographic study also gives information about other vascular lesions and the morphology of ECA and its branches as well as collateral circulation. Moreover angiography evaluates the result of bypass. The methods of the preoperative and postoperative angiography are described.

Brain Ischemia↗
PubMed1983

CT and plain X-ray examination of the skull in pure traumatic laceration of the brain.

The authors reviewed a series of 68 brain lacerations. Patients with associated subdural hematomas and/or depressed skull fracture were excluded from this study. The material has been divided in three groups: mainly hypodense, mainly hyperdense and mixed lesions. Clinical outcome was evaluated according to the various features of parenchymal lesions: CT aspect, mass effect and site. The presence of a considerable amount of blood suggests an unfavourable prognosis while the site and the mass effect do not seem to influence the course of the disease.

Brain↗
PubMedDate not supplied

Osseous metaplasia in a growth hormone-secreting pituitary adenoma.

A case of growth hormone-secreting adenoma of the pituitary gland showing osseous metaplasia is described in a 56-year-old acromegalic female. The tumor was composed of nests of densely granulated cells separated by and intermixed with calcifications, trabeculae of mature bone and fat. Calcifications are seldom found in pituitary adenomas. In rare instances, calcium deposits can be prominent enough to lead to the formation of pituitary stones and bone which replace the entire tumor mass. Analogously with metaplastic meningiomas, we propose using the term metaplastic adenoma to define cases with osseous metaplasia in order to distinguish between lesions containing bone from the more frequently seen calcified adenomas.

Acromegaly↗