From her high school biology class to a career in pathology, Mary Landau, M.D., has marveled at the nuances of the human body at the microscopic level. Through the years, she discovered art in the laboratory and now shares her findings through MPATHY Art. One photo looks like a wave crashing on the beach. Another, like a pink heart. A third brings to mind festive party streamers. Hard to believe these striking images are squamous...