Resumen

HORVATH, Eleonora; GALLEGUILLOS, María Cecilia  y  SCHONSTEDT, Valeria. ¿EXISTEN CANCERES NO DETECTABLES EN LA MAMOGRAFIA?. Rev. chil. radiol. [online]. 2007, vol.13, n.2, pp.84-89. ISSN 0717-9308.  http://dx.doi.org/10.4067/S0717-93082007000200007.

Women are greatly misinformed about the rate of false negatives found in mammography and tend to overestimate its sensitivity. This situation might create an increase in the number of lawsuits and demands of financial compensation. The frequency of mammographically occult cancers is estimated between 7 and 24%, depending on the evaluated population. These cancers are defined as those that have not been detected mammographically, but have been detected by other breast imaging methods such as ultrasound, magnetic resonance; by feeling or by the discovery of a metastasis. The small tumoral size, the absence of microcalci-fications and the low stromal reaction represent the histopathological characteristics responsible for the non-detectability especially in cases ofradiologically dense breasts, where the false negatives can reach up to 30%. The complementary breast US and the timely use of the breast MR significantly improve the detection rate. However some breast cancers are not represented on imaging, and are solely histopathological findings

Palabras clave : Breast; Mammography.

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