EOCABreast cancer is the most common type of cancer and the second leading cause of cancer death among women in the Americas. Objective: clinical tumor characteristics and molecular markers in diabetic patients with breast cancer in the province of Pinar del Río. Method: observational, transversal and analytical study in the Oncological Patient Care Center Third Congress during the period from 2016_2021. The universe consisted of 116 female patients diagnosed with breast cancer between January 2007 and December 2011. Two groups were established, one of 30 diabetic patients and the other of...