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Biomedical subjects

G Giuliani

Publications and source records attributed to G Giuliani.

At least 109 records · Page 6Linked to original sources
PubMedDate not supplied

Ganglionic cysts of the peroneal nerve at the knee: CT and surgical correlation.

The CT appearance of two cases of ganglionic cysts of the common peroneal nerve at the knee is reported. In both cases the ganglion appeared as a cystic unenhanced lesion of mucoid density. The radiological findings were confirmed by surgery. The differences in the appearance of intraneural and extraneural ganglia are discussed.

Adult↗
PubMedDate not supplied

[Unusual case of benign neoplasm of the breast mimicking a carcinoma: granular cell tumor. Case report].

Granular cell tumors are rare, usually benign neoplasms of soft tissues which most commonly occur in the tongue, skin and subcutaneous tissue. Although the histogenesis is still object of debate, recent immunohistochemical studies and ultrastructural findings support the origin of this neoplasm from the peripheral nervous tissue, most likely from Schwann's cells. Occurrence of this neoplasm in the breast, although uncommon, warrants special attention, since its clinical, mammographic and pathological appearances on frozen sections "may often closely resemble" hose of breast malignancy. The authors analyze and commenton, with special reference to clinical aspects and surgical treatment, a case of benign granular cell tumor of the breast occurring in a 42 year-old woman. The mammographic and clinical findings suggested a breast carcinoma. The correct diagnosis was established by definitive microscopic examination of the paraffin-embedded specimens and the treatment was a simple local excision of the tumour and a small rim of surrounding breast parenchyma. Although the granular cell tumor of the breast is a rare entity, surgeons and pathologists should be aware of its existence in order to avoid inappropriate radical surgery not justified by the benign behavior of the neoplasm.

Adult↗
PubMedDate not supplied

Benign solitary nerve sheath tumors of the spinal accessory nerve in the posterior triangle of the neck. Report of two cases.

A case of solitary schwannoma and one of solitary neurofibroma originating from the spinal accessory nerve in the posterior triangle of the neck are described. Location of such neoplasms in this region is exceptional. The authors emphasize the importance of accurately enucleating the mass; when it is impossible to preserve the continuity of the neural pathway, nerve repair should be considered.

Accessory Nerve↗
PubMedDate not supplied

[Primary aortoenteric fistula. Report of a case].

Primary aortoenteric fistulas (PAEF) are rare entities associated with a high mortality. Although several causes have been reported, their occurrence is usually due to erosion of an abdominal aortic aneurysm into the intestinal tract. The most common sites for the fistula are the third and fourth portions of duodenum. The classical triad of gastrointestinal hemorrhage, abdominal mass and abdominal or back pain, though highly suggestive for PAEF, is uncommon. The typical bleeding pattern associated with PAEF is characteristically intermittent, starting with a brief "herald bleeding" followed eventually by major gastrointestinal hemorrhage, often with fatal outcome. The pre-operative examinations are often not helpful and can lead to delayed diagnosis and surgery. In a patient with risk factors for atherosclerosis and significant upper gastrointestinal bleeding in the absence of an evident source, PAEF should be suspected. A high index of suspicion of this condition allows correct diagnosis and definitive treatment to be carried out. If PAEF is suspected and the patient is unstable the surgeon should be prepared to skip the preoperative investigations in favour of early surgical exploration. Definitive treatment includes primary duodenal repair and aortic aneurismal resection with graft "in situ" replacement. The authors present a successfully treated case and stress the importance of clinical suspicion in order to achieve correct diagnosis and treatment.

Aged↗
PubMedDate not supplied

Sural neuropathy produced by intraneural ganglion.

The authors describe an intraneural ganglion of the sural nerve at the ankle. This cause for sural neuropathy has never previously been cited. Resection of the sural nerve together with the indwelling cyst is suggested.

Adult↗
PubMedDate not supplied

Theoretical study for use of Leksell's stereotactic frame in radiosurgery.

The authors examine all the problems connected with the use of Leksell's frame. These problems were studied specifically for the treatment of artero-venous malformation of the brain using small fields and movement therapy of a 10 MV linear accelerator. The technique allows the administration of high radiation doses (25-30) Gy into a very small target within a fraction. In this way the surrounding tissue receives a low dose. The treatment was initially simulated with a dummy. The dosimetry gives an accuracy of +/- 1.5%. This study has been able to resolve all the theoretical and practical problems demonstrating the feasibility of the project which has already been put into effect.

Humans↗
PubMedDate not supplied

[Noninvasive hemodynamic (bioimpedance) evaluation during short anesthesia with propofol].

The hemodynamic effects of propofol (3 mg/kg) during anesthetic management of 10 patients undergoing minor urologic procedures were evaluated by noninvasive thoracic electrical bioimpedance method. Cardiac output, cardiac index, systolic and diastolic arterial blood pressures and EVI/TFI (an index of myocardial function) decreased significantly in ten minutes from starting of propofol injection, while the heart rate remained unchanged.

Aged↗
PubMedDate not supplied

[Management of electron accelerators for radiotherapy. Data as of 31 December 1984].

Several italian radiotherapeutic centers have supplied the data analysed, regarding problems connected with the management of electron accelerators in the years 1982-1983-1984. The data concern 27 out of the 35 accelerators settled in Italy. The average cost of purchase has proved to be of 940 M pounds with an expense of annual allowance of 94 M pounds. We have then analysed the incidences of the allowance of the purchase expenditure of the machine (23%), the allowance of the expenses for the construction of the bunker (22%), the expenses of maintenance of the machine (5%), the cost of the staff (48%) and the cost of the power supply (2%) on the management costs (about pounds 820.000 per each handled patient). The duration of the various phases of the machinery installment, from the purchase to the beginning of the treatment, the charge of work supported in the three considered years, the daily use of the machinery and the problems deriving from days of time out of services due to failures or to periodical maintenance have then been studied. The analysis of the average values of the parameters studied and of the range of their variability allows us to find out the sector in which it is possible, also at present, to intervene in order to ameliorate the employment of a linear accelerator, regarding the costs and the performance.

Cost-Benefit Analysis↗