A total of 32 (42.7%) and 43 (57.3%) were TN and HER2+ tumors, respectively: 21 (28%) had obesity, 32 (42.7%) had a tumor size ≤ 5 cm, and 52 patients (69.3%) had positive lymph nodes. The gene discussed is ERBB2; the disease is obesity due to melanocortin 4 receptor deficiency.