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Biomedical subjects

J Frija

Publications and source records attributed to J Frija.

133 records · Page 8Linked to original sources
PubMedDate not supplied

[Efficacy of x-ray computed tomography in the diagnosis of tumors of the mediastinum. 103 cases].

A prospective study was carried out in 103 patients with mediastinal tumors to determine diagnostic value of CT imaging. A precise diagnosis was obtained in 80% of cases, the detection sensitivity being 100%, 98% and 71% respectively for fatty tumors (20 cases), solid tumors (59 cases) and cystic tumors (24 cases). The weak sensitivity of detection of cystic tumors was due to the spontaneously elevated density of mediastinal cystic tumors and the fact that 2 patients in this series with cystic lesions presented enhanced images with contrast. Sensitivity of detection of a malignant tumor was only 59%, due mainly for thymic tumors to extracapsular microscopic extensions undetected by CT scanning, which should however be included in exploratory techniques for mediastinal tumors.

Humans↗
PubMedDate not supplied

[Hodgkin's disease. Residual histologically stable masses after chemotherapy].

In 4 patients with Hodgkin's disease treated with chemotherapy persistent residual masses, remarkable by their initial volume in 3 cases, were surgically removed. Histological examination showed that the masses were histologically stable and non-evolutive. The incidence of residual masses is discussed with a review of the literature. These masses, which should not be confused with therapeutic failures, constitute a striking example of the special place occupied by surgery in certain forms of Hodgkin's disease.

Adult↗
PubMedDate not supplied

[Tomodensitometry of severe acute pancreatitis].

90 computed tomographic examinations were performed to 57 patients referred at Hospital Saint-Louis for an acute pancreatitis. 32 patients were operated or autopsied. Among these 32 patients, 19 patients had 21 examinations before surgery or autopsy; the other 13 patients had their computed tomographic examinations after one or more surgical procedures. During a severe acute pancreatitis the pancreas is always large either locally or diffusely. A pancreatic reaction is visible around and possibly at distance of the pancreas. When extraluminal gas is visible (3/5) it signifies gangrenous pancreatitis but it is necessary to eliminate a digestive fistulous tract and/or a communication between a pseudocyst and the digestive tract. Except gangrenous it is not possible to precise the nature of pancreatic reaction. The diagnosis of pseudocyst was easy 9/10, difficult 1/10; we did a false positive diagnosis of pseudocyst. Computed tomography and ultrasounds were compared in ten patients for the search of gallbladder lithiasis. Computed tomography can show large and small (2/4) biliary calculus in the gallbladder that cannot be shown by ultrasounds. A normal pancreas in a normal retroperitoneal space exclude the diagnosis of a severe acute pancreatitis. CT aspects of acute pancreatitis must be considered as a good diagnostic test of an acute pancreatitis.

Acute Disease↗
PubMedDate not supplied

[Contribution of computed tomography to the exploration of congenital anomalies of the inferior vena cava. A report on five cases (author's transl)].

3 cases of abnormalities of the inferior vena cava are reported: one isolated left inferior vena cava, one duplication of the inferior vena cava with continuation by a left inferior hemi-azygos vein and a simple duplication of the post-renal inferior vena cava. Finally, 2 cases of retro-aortic left renal vein are described. These abnormalities may be fully studied by computed tomography which in certain cases makes it possible to avoid inferior cavography. The authors emphasize potential sources of error in interpretation and the value of being aware of the congenital malformation of the inferior vena cava.

Female↗
PubMedDate not supplied

[Value of computed tomography for the investigation and diagnosis of aortic aneurysms (author's transl)].

Abdominal or thoracic aneurysms can be perfectly well visualized by computed tomography, and tumors lying close to the aorta and simulating ectasia can often be eliminated. The exact topographical features of the lesions can be defined as well as their extension superiorly. In many cases, calcifications, clots, a permeable channel, or even a periaortic hematoma showing fissuration can be demonstrated. On many occasions the value of computed tomography is such that angiography may not be necessary.

Adult↗
PubMedDate not supplied

Localization techniques for the thoracoscopic resection of pulmonary nodules.

The recent progress made in endoscopic surgery has increased the number of thoracoscopic procedures, especially in the field of pulmonary nodules resection. The main problem related to these newly developed surgical procedures is the difficulty in locating the target nodule. We describe the techniques we currently use to facilitate the localization of pulmonary nodules. These techniques include preoperative methylene blue injection and insertion of a hookwire into the lung nodule, but also intraoperative palpation (digital and instrumental) and ultrasonography.

Endoscopes↗