Search PubMed⌕ Search

Biomedical subjects

R Ballanger

Publications and source records attributed to R Ballanger.

17 recordsLinked to original sources
PubMed1986

[Diagnostic and therapeutic approach to the extension of kidney cancer to the vena cava].

In the light of their experience with 16 cases seen over 5 years, the authors analyze the diagnostic and therapeutic tools for assessment of the vena cava thrombi that complicate 5 to 10% of renal carcinomas. Cavography still plays a central part in the detection of vena cava lesions. Localization of the upper extremity of the thrombus is needed to decide upon the operative technique and can be achieved by free flow inferior cavography for free floating thrombi; for complete thrombi, the two most informative procedures appear to be echocardiography (to evaluate the right atrium and intrathoracic inferior vena cava) and inferior cavography by the superior route; it seems that computed tomography provides no additional information in the assessment of extensive spread to the inferior vena cava. 14 patients were treated surgically: the surgical approach is dictated by the location of the thrombus and should allow control of the vena cava proximal to the thrombi. Two patients with a thrombus that extended into the right atrium had surgery using extracorporeal circulation; because this method is especially safe, extension of its indications to retrohepatic thrombi may be justified. The absence of operative mortality and comparison of results to those previously reported in the literature confirm the value of surgical treatment of vena cava lesions, especially if there is no lymph node involvement.

Aged↗
PubMed1979

Renal adenomas.

In presenting five new cases of renal adenomas the authors describe the general nature of these rare tumours. If the small adenoma corresponding to microscopic forms is frequent, the large adenoma is rare and always solitary. Haematuria and pain are the most common signs. The classic criterion of non-malignancy in a solid tumour measuring less than 3 cm has no diagnostic value. From a review of the lieterature on the subject, the authors demonstrate the angio-architecture corresponding to the different types of adenoma: the tubular adenoma which is hypervascularised and well circumscribed; the papillary adenoma, often cortical, hypovascular or avascular with bordering arcade; the alveolar adenoma; the mixed forms. They stress the difficulty of radiological diagnosis and the frequency of transitional forms with cancer. The place of angiography is in the pre-operative diagnostic assessment and in defining localised anomalies in angio-architecture which can guide histological examination in the search for neoplastic foci.

Adenoma↗