[Clinical challenges and implications of intratumor heterogeneity]
José Palacios1, Xavier Matías-Guiu2, Jose Luis Rodríguez-Peralto3
1Servicio de Anatomía Patológica, Hospital Universitario Ramón y Cajal, IRyCIS, CIBERONC, Universidad de Alcalá de Henares, Madrid, España.
Abstract:
Tumors display a high, albeit variable, grade of intratumor heterogeneity, both from a clinical and a morphological viewpoint. Furthermore, recent methods of large-scale molecular analysis demonstrate to what extent tumors can also be heterogeneous from a molecular perspective. This is of paramount importance for patients as it has a great impact on the success of so-called precision therapies and explains the reason for a significant number of therapeutic failures in modern oncology. We present an up-to-date review of the latest findings in a group of tumors with a high social impact, commonly seen in the daily routine of the pathology laboratory.
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