Challenges in the evaluation of HER2 and HER2-low in breast cancer in Brazil and recommendations of a multidisciplinary working group

Affiliations

• ¹ Universidade Federal do Triângulo Mineiro, Discipline of Special Pathology - Uberaba (MG), Brazil.
• ² Universidade de São Paulo, Department of Pathology - São Paulo (SP), Brazil.
• ³ A.C.Camargo Cancer Center, Department of Pathological Anatomy - São Paulo (SP), Brazil.
• ⁴ Universidade Federal de São Paulo, Department of Pathology - São Paulo (SP), Brazil.
• ⁵ Institute of Molecular and Surgical Pathology - Ophir Loyola Hospital - Belém (PA), Brazil.
• ⁶ Universidade de São Paulo, Institute of Pathological Anatomy, School of Dentistry, D´Or São Luiz Network - São Paulo (SP), Brazil.
• ⁷ Oncoclínicas Group - Salvador (BA), Brazil.
• ⁸ Universidade Federal de Goiás, Department of Gynecology - Goiânia (GO), Brazil.
• ⁹ Latin American Cooperative Oncology Group and Oncoclínicas Group - Porto Alegre (RS), Brazil.