A 41-year-old woman presents to her primary doctor with comp…
A 41-year-old woman presents to her primary doctor with complaints of weight gain, cold intolerance, fatigue, and increased hair loss in the last 4 months. Physical exam reveals periorbital puffiness, coarse, brittle hair, and a heart rate of 55. Her TSH level is 5.3 mlU/L. Which of the following is most likely diagnosis?