[Lymphographic and x-ray computed tomographic determination of criteria for normality of the transverse diameter of retroperitoneal lymph nodes]. / Détermination lymphographique et scanographique des critères de normalité de diamètre transversal des ganglions rétropéritonéaux.

Evaluation of ganglionic extension in malignant processes rely widely on ultrasound and CT. However the information yielded by those procedures regarding the ganglionic structure is poor. What is appreciated is the size of ganglia, that is presence or absence of adenomegaly. A CT study of subjects in which lymphography did not reveal structural or size changes enables one to specify the following criteria of normality: The transverse diameter of abdominal lymph nodes should not exceed 1,5 cm. The product: transverse diameter X antero posterior diameter should not exceed 2.

[Contribution of ultrasonic radiology to the diagnosis of breast lesions]. / Apport de la radiographie ultrasonore au diagnostic des lésions mammaires.

Various types of equipment can be used for diagnostic application of ultrasounds in breast lesions and the pictures obtained vary in character according to the nature of the lesion. Circumscribed lesions can be either fluid collections or solid nodules, and it is hoped that technical artefacts still under study will ultimately enable to establish distinction between benign and malignant lesions. Uncircumscribed lesions are characterized by their irregular outline. Echography does not compete with the remaining diagnostic techniques; however, it can be considered as a complementary method in well-defined cases.