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Biomedical subjects

A Acconcia

Publications and source records attributed to A Acconcia.

At least 19 recordsLinked to original sources

Management of synchronous abdominal aortic aneurysm and renal carcinoma associated with duplication of the inferior vena cava.

The management of concomitant abdominal aortic aneurysm and intra-abdominal malignancies is still disputed; whether to treat the lesions simultaneously or as staged procedures being the main controversy. Abdominal aortic aneurysm associated with renal carcinoma is rare and combined aneurysm repair and nephrectomy appears to be the treatment of choice in selected patients. We report a case where the surgical management of simultaneously occurring abdominal aortic aneurysm and renal carcinoma was complicated by the presence of a duplicated inferior vena cava. The rationale for the treatment of this patient and the technical difficulties of the surgical procedure are discussed and a review of the literature to date is reported.

Aortic Aneurysm, Abdominal↗

Non-neurogenic neurogenic bladder.

A case report of a 10 year old boy, presenting with a non-neurogenic neurogenic bladder is described and taken into account to discuss the most common etiologies of voiding dysfunction in children. Focus is placed on spinal dysraphism as a cause of a neurogenic bladder in opposition to non-neurogenic neurogenic bladders, to stress the differences in etiology, pathology and treatment.

Child↗

Primary carcinoid tumor of kidney. Light and electron microscopy, and immunohistochemical study.

We present a case of primary renal carcinoid tumor with the appearance of type B carcinoid with trabecular and ribbon-like structure. All the immunohistochemical stains were negative. Electron microscopy revealed numerous cytoplasmic granules with polar distribution and masses of intermediate microfilaments. We believe only 8 cases have been reported in the literature.

Actin Cytoskeleton↗

Nuclear morphometry as an important prognostic factor in stage I renal cell carcinoma.

Although 60% of Stage I renal carcinoma patients die from tumor within 5 years postoperatively, a considerable percentage survive that period. Nuclear grading can help to predict the outcome, but many of the patients are Grade 2, and the prognosis of this subclass is uncertain. Therefore, nuclear morphometry was carried out in 41 patients with Stage I renal cell carcinoma. Of these, 24 died within 5 years and 17 have survived that period. Using a mean nuclear area of 32 micron 2 as the decision threshold, none of the 24 short-term survivors are below that threshold and three of the long-term survivors exceed that value (18% false-positives) (99% confidence limit). Separate analysis with sets for learning and testing and Grade 2 patients gave similar results. The results show the essential prognostic value of morphometry in this set of patients with Stage I renal cell carcinoma.

Adult↗

Dissecting aneurysm of renal artery owing to subadventitial angioma.

A case of renovascular hypertension caused by a dissecting aneurysm of the main right renal artery owing to a subadventitial angioma is described. The right kidney was not functioning but, nevertheless, an aortorenal bypass was done and function of the kidney was recovered. Although the hypertension was controlled for 6 months it recurred. A nephrectomy was performed and the hypertension was cured.

Aortic Dissection↗

Acceleration of peritoneal dialysis with simple device.

Peritoneal dialysis in acute and chronic renal failure has been greatly facilitated by the advent of Tenckhoff indwelling peritoneal catheters and by strict control of peritoneal infections. A number of reports on long-term treatment have been published. A simple device has been developed and tested for regular peritoneal dialysis in the hospital and in the home, in order to accelerate the time required. Employing a 'single needle apparatus', a rotary pump and a themostatic heating unit, it is possible to carry out a very efficacious peritoneal dialysis, similar to the 'continuous peritoneal dialysis'. The purpose of this paper is to discuss its use and its advantages in comparison with classic procedures.

Catheters, Indwelling↗

[Alkaptonuria with ochronosis and monoclonal gammopathy].

A case of alkaptonuria with ochronosis is described. It is suggested that such cases are not so much rare as unobserved. Their aetiology is to be sought in a metabolic error, though the pathogenesis is not clear. The syndrome is of interest because ochronosis, wich is the articular manifestation, is one of the few rheumatological affections with a certain aetiology. The case described is unusual on account of the presence of monoclonal gammopathy. Since the presence of myeloma and macroglobulinaemia could be excluded, an immunological relation was sought between the alkaptonuria and the particular serological picture.

Adult↗