Has a degree in Medicine from the Complutense University of Madrid. He is an Oncological Surgeon and Plastic Surgeon specialized in oncological, reconstructive and aesthetic surgery of the breast. He completed his doctoral thesis in Medicine on non-invasive robotic surgery in breast lesions. He completed the International Master’s degree in Mastology from FEMA and the Menéndez Pelayo International University. He has developed his healthcare activity in large national and international Hospital Centers, such as the Gregorio Marañón General University Hospital in Madrid and the Santa María University Hospital in Lisbon. He furthered his training in surgical oncology at the European Institute of Oncology in Milan and the Breast Surgery Department of the Memorial Sloan Kettering Cancer Center Hospital in New York. Likewise, he made long specialization stays in Plastic Surgery at the National Cancer Institute in Milan and at the Teknon Medical Center in Barcelona. Dr. Antonio Tejerina is a Member of the Board of Directors of the Spanish Society of Senology and Breast Pathology (SESPM). He is Professor and Head of Studies of the International Master of Specialization in Mastology of FEMA and the Menéndez Pelayo International University. He is the author of numerous chapters in mastology books and has published scientific articles linked to research projects on breast pathology. He regularly participates in numerous courses and congresses around the world on breast cancer, breast reconstruction and breast aesthetics.