[HER2 epidermal growth factor receptor, tests used to look for its amplification in breast cancer: Principles and limitations].

HER2-positive breast cancer accounts for 20 % of all invasive breast cancers. It is associated with increased recurrence, a higher risk of brain metastases and a shorter overall survival than luminal A and B cancers. The presence of ERBB2 gene amplification is predictive of a good response to anti-HER2 therapies.

Exploring real-world practices and challenges of sarcoma diagnosis in Morocco: A survey-based study among 144 pathologists.

Background And Aim: Sarcoma diagnosis is a challenge for laboratories of cytopathology and anatomic pathology. We conducted this survey-based study to better elucidate real-world practices and challenges of sarcoma diagnosis.  Methods: This was a cross-sectional study using an anonymous questionnaire.