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Biomedical subjects

J P Giron

Publications and source records attributed to J P Giron.

10 recordsLinked to original sources
PubMed1989

[Percutaneous placement of a double-J endoprosthesis using a descending approach in malignant pelvic tumor threatening the permeability of the upper urinary tract. Apropos of 10 patients].

The percutaneous route should be used for ureteral endoprosthesis placement, whenever ascending retrograde passage is not accessible. The authors review the experience gained from attending 10 patients with advance-stage pelvic malignancies and describe the technique used. Emphasis is placed on care needed when selecting the proper route of entry, as well as on advantages presented by J x 2 large gauge probes developed from new biocompatible polymers. This surgical technique may, some times, ensure comfortable survival in selected, premedicated patients under local anesthesia, in whom it is well-tolerated, and yields low complication rates.

Adult↗
PubMed1988

[Value of the continuous guide in endoscopic operations on the upper urinary tract].

Endoscopic operations on the upper urinary tract, whether they are performed from below upwards from the bladder or from above downwards from the kidney, are faced by a common difficulty: the risk of a false passage. This has led to the idea of using a flexible metal guide, as in vascular radiology. However, such a non-tense guide is not really a guide, as nothing prevents it from twisting around the end of the instrument which it is intended to guide, resulting in false passages. In contrast, a guide which is brought out through the urethral meatus and at the lumbar fossa can be placed under tension, preventing any deviation of the instrument or its covering catheter. The continuous guide is essentially used in three situations: 1. percutaneous nephrolithotomy: when a second phase is not excluded, the continuous guide will make it much easier; 2. descending ureteroscopy; 3. ascending ureteroscopy.

Endoscopes↗
PubMed1988

[Endoscopic and percutaneous treatment of purulent retention caused by obstructive calculi of the upper urinary tract. Observations apropos of 6 case reports].

On the basis of 6 cases of pyonephrosis due to renal stones successfully treated without surgery over a period of one year, the authors define their current therapeutic approach which consists of 2 phases: --1st phase: salvage of the kidney by ultrasound guided percutaneous nephrostomy under local anaesthesia. No hasty endoscopic procedures in an attempt to insert a ureteric catheter into the kidney; --2nd phase: elimination of the obstructing stone (on average, 8 days after the 1st phase), by percutaneous nephrolithotomy, descending ureteroscopy or ascending ureteroscopy.

Adult↗
PubMed1983

[Granulomatous colitis presenting as ischemic colitis].

The authors describe a case of granulomatous colitis mimicking a non gangrenous ischemic colitis. The radiological features are thumbprinting, ulcerations, then stenosis and sacculation. The resected specimen reveal some granuloma without necrosa.

Adult↗
PubMed1983

[Radiological aspects of gastric localizations of malignant non-Hodgkin's lymphoma. Apropos of 50 cases].

The authors describe radiological features of non Hodgkin's gastric lymphomas based on a study of 50 cases, with endoscopic correlation in 43 cases. Radiographic appearance is categorized as infiltrative (40 per cent), ulcerative (26 per cent), polypoid (10 per cent) and polymorphic (24 per cent). Gastric carcinoma is the most important differential diagnosis. Since staging, therapy and prognostic are different in these two diseases, accurate radiologic diagnosis is of particular importance. Combination of several peculiar radiologic signs suggest gastric lymphoma in 56 per cent of all the cases (16 per cent for endoscopy alone); this fact demonstrate the necessity of barium meal for a more accurate diagnosis of gastric lymphomas.

Adenocarcinoma↗
PubMed1983

[Radiological aspects of rectal and colonic localizations of malignant non-Hodgkin's lymphoma. Apropos of 30 cases].

The authors review radiological and endoscopical data of 30 patients with primary or secondary colonic and rectal non Hodgkin's lymphomatous involvement, and describe the radiologic pattern of this peculiar entity. Confirmation of the diagnosis is based in all cases on the pathological study of surgical specimens or per endoscopical biopsy. Eight patients (26%) presented non specific involvement secondary to small bowel or gastric localisation. The other patients (74%) had intrinsic lesions who may either remain localised (commonly endo-enteric type) or extend to whole of the colon (infiltrating type). After a description of the radiological features of these wide spectrum lesions, the authors consider the differential diagnosis and the respective contribution of colonic endoscopy and barium enema.

Adolescent↗
PubMed1981

[Topography, structure and vascularization of the fat pad of the lumbar trigone (corpus adiposum trigoni lumbalis)].

The corpus adiposum trigoni lumbalis is an adipose mass which is separated from the hypodermic fat pad by the fascia superficialis and placed on the trigonum lumbale and higher part of gluteal region. It gives some extension toward the flanks, the middle line of the body, the lower put of the gluteal region and is also very close to the subperitoneal fat pad. It's vascularization depends in greater part of it's own vessels, but also on vessels that irrigate the integument.

Adipose Tissue↗