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Biomedical subjects

P Ballanger

Publications and source records attributed to P Ballanger.

16 recordsLinked to original sources
PubMed1992

[Iliac artery-ureteral fistula after aorto-iliac reconstructive surgery (apropos of 3 cases)].

The authors report 3 cases of ilio-ureteric fistulae following aorto-iliac reconstructive surgery. They also review 6 similar cases published in the worldwide literature. All of these cases have in common the appearance of a uretero-arterial fistula several years after the vascular operation on the iliac artery. The postoperative course of iliac thromboendarterectomy appears to be principally responsible, as in the 3 cases presented here, resulting in a pseudoaneurysm over the arteriotomy closure, especially as a patch angioplasty had been performed. This complication is exceptional. The diagnosis must be suspected in the case of profuse haematuria and a suggestive history and should be confirmed, when possible, by intravenous urography, retrograde ureteropyelography, arteriography, or even computed tomography. Treatment is complex and consists of a vascular and urological procedure depending on the degree of urgency and the possibilities of reconstruction.

Aged↗
PubMed1992

[Long-term prognosis of kidney cancer with vena cava thrombus. Report of 30 cases].

The authors present a retrospective analysis of 30 cases of renal cancer with vena cava thrombus with a sufficient follow-up to allow analysis of the long-term prognosis. Only three patients are still alive with a follow-up of 12, 34 and 57 months. The actuarial survival for the overall population was 55%, 37% and 22% at 1, 2 and 3 years respectively. Three essential factors influenced the prognosis of these patients: the presence of distant metastases, lymph node invasion and the highest cephalic level of extension of the thrombus. Renal cancer with vena cava thrombus without metastases and without lymph node involvement has a good prognosis (100% 2-year survival), but is very rare (4 out of 30 cases), so that renal cancer with vena cava thrombus must be considered to be a serious disease (3 survivors out of 30).

Actuarial Analysis↗
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↗