Dr. Mark Edward Hatley M.D., PH.D.

IntroductionDoctors who specialize in the diagnosis and treatment of conditions or diseases of the cardiovascular system (the heart and blood vessels) are called heart doctors or cardiologists. These specialists are trained to identify, treat, and help prevent heart issues. There are also different...

Cancer and its treatment often cause side effects. In addition to treatment, an important part of cancer care is relieving a woman’s symptoms and side effects. This approach is called palliative or supportive care, and it includes supporting the patient with her physical, emotional, and social...

IntroductionA decrease in the number of white blood cells (WBCs) is referred to as leukopenia. There are several causes for leukopenia. It may be due to certain drugs, cancer, radiation and chemotherapy for cancer, stem cell transplant, surgery, steroids, or autoimmune disorders. The immune system...

Leukemia in its early stages may present no signs or symptoms, as these only appear when the leukemia cells have taken over a large number of normal blood cells. A person with leukemia is very lucky indeed if early-stage detection occurs incidentally, through a routine blood test or one done for...

PurpuraPurpura refers to purple-colored spots that are usually seen on the skin, including mucous membranes and other organs. It is also called skin hemorrhages or blood spots.Purpura is usually recognized when there is pooling of blood under the skin due to ruptured small blood vessels. The size of...

Lymphoma is a blood cancer that affects both children and adults.Lymphoma begins its growth in the lymphatic white blood cells of the lymph system. This system is a major warrior in fighting off infections and diseases. It is part of the body’s immunity team.The lymph system loops throughout the...