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Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
Pancytopenia: A shortage of all types of blood cells. Pancytopenia can be caused by a side effect of many medications (such as azathioprine, methotrexate, and others) or diseases (such as lupus and bone marrow disorders). Treatment is directed toward the underlying cause and may be supplemented by medications that stimulate the bone marrow.
