Keywords: Breast cancer, Follow-up, Palbociclib-fulvestrant, Pathologic fracture

SUPPORTING INFORMATION

The authors of this manuscript would like to be grateful to the patient whose clinical case has been exposed. Her help to the contribution of medical science development needs to be mentioned and acclaimed. We would like to thank Dr. Carmen Esteban, Medical Oncologist of Medical Oncology Department in Hospital Virgen de la Salud, for her contribution to the education of new oncologist residents. She has always been open to help and guide clinical and researching projects and she is the light that leads this report and many other researching activities.

Miguel Borregón Rivilla - Conception of the work, Design of the work, Acquisition of data, Analysis of data, Drafting the work, Revising the work critically for important intellectual content, Final approval of the version to be published, Agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

Katherin Aly Martínez Barroso - Conception of the work, Design of the work, Acquisition of data, Analysis of data, Drafting the work, Revising the work critically for important intellectual content, Final approval of the version to be published, Agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

Irene Ramos Reguera - Conception of the work, Design of the work, Acquisition of data, Analysis of data, Drafting the work, Revising the work critically for important intellectual content, Final approval of the version to be published, Agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

Alba Ramos Garrido - Conception of the work, Design of the work, Acquisition of data, Analysis of data, Drafting the work, Revising the work critically for important intellectual content, Final approval of the version to be published, Agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

Carmen Esteban Esteban - Conception of the work, Design of the work, Acquisition of data, Analysis of data, Drafting the work, Revising the work critically for important intellectual content, Final approval of the version to be published, Agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

Juan David Cárdenas - Conception of the work, Design of the work, Acquisition of data, Analysis of data, Drafting the work, Revising the work critically for important intellectual content, Final approval of the version to be published, Agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

The corresponding author is the guarantor of submission.

None

Written informed consent was obtained from the patient for publication of this article.

All relevant data are within the paper and its Supporting Information files.

Authors declare no conflict of interest.

© 2019 Miguel Borregón Rivilla et al. This article is distributed under the terms of Creative Commons Attribution License which permits unrestricted use, distribution and reproduction in any medium provided the original author(s) and original publisher are properly credited. Please see the copyright policy on the journal website for more information.