[Experimental colonic cancers].

An experimental model of colonic cancer can be obtained in rodents by administration of 1-2 Dimethylhydrazine. It produces constant, reproducible lesions, ranging from simple anomalies of secretion to invasive cancers, which are identical to those observed in man. It should be noted that the rats and mice used in these experiments do not present spontaneous colonic tumours.

[Benign mammographic stellar images. Apropos of 15 cases].

15 stellar types breast lesions were reviewed and classified according their etiology (fibrosing adenosis, dysplasia, dystrophy, radial scar of Aschoff, fat necrosis). Radio-anatomical confrontation allowed to understand the images given by the varying appearances of the connective skeleton surrounded by adipose lobules. The authors study the diagnosis of the stellar breast lesions and recall the determinant role of connective tissue in the genesis of mammographic stellar images.

[Diagnosis of tumor recurrence within the breast after tumor removal for cancer, followed or not by radiotherapy. Apropos of 23 cases].

The diagnostic value of mammography was evaluated retrospectively in 23 recurrent carcinomas in patients previously treated by partial mastectomy with or without adjuvant radiotherapy. Mammography established accurate diagnosis in 11 of the 23 patients. Mammography should always be performed in addition to clinical and cytological examinations and results must be evaluated jointly.

[Multilocular cyst of the kidney in adults. Problems in arteriographic and tomodensitometric diagnosis. Apropos of a case].

A case of multilocular cyst of the kidney in a forty-eight old female is reported. The urography-ultrasonography association had shown the heterogeneous character of the renal tumor. The angiography and the computed tomography were alarming.