[Diagnostic difficulties in mammography]

The authors point out the main causes of error in the radiology of the mammary gland. The source of these errors may be found at several levels in the diagnostic scale ranging from the object itself to the interpretation of the image by the examiner. Some of these causes are illustrated by definite examples: the absence of a radiographic translation of a tumor; round or finely irregular opacities. It is in the collaboration of radiologists with pathologists that the diagnosis is improved.