MS-2424

A 56-year-old teacher presents to her GP with increasing fatigue, weakness, and weight loss. She has a medical history of type II diabetes mellitus and osteoarthritis in her right knee. Her father passed away from dilated cardiomyopathy at age 47. During examination, she has multiple spider naevi on her chest and appears tanned. She does not smoke and only drinks during Christmas. Abdominal examination reveals hepatomegaly, but no other signs. Recent genetic testing at home has shown that she is HLA-A3 positive. Blood tests indicate an elevated ferritin and increased transferrin saturation. What is the most probable diagnosis?