A 23-year-old woman presents with concerns of tender breast enlargement. She gave birth to a healthy newborn 2 weeks ago, and she currently breastfeeds. Examination reveals subjective fevers, myalgias, and general erythema, warmth, and edema of the right breast. There is mild overlying erythema, but no other superficial abnormalities, palpable masses, or purulent nipple discharge present. The left breast appears normal. Which of the following is the most likely diagnosis? ABreast abscess BBreast engorgement CInflammatory breast cancer DLactation mastitis. Answer D
