Dr. Joseph R. Holahan M.D.

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...

Differences in Description Warfarin is an anticoagulant or blood thinner under the brand names Coumadin and Jantoven. It is used to prevent the formation and migration of blood clots. Originally, it was marketed as a pesticide. Since then, it has become one of the most frequently prescribed oral...

Anemia should not be accepted as an inevitable consequence of aging. A cause is found in approximately 80 percent of elderly patients. The most common causes of anemia in the elderly are chronic disease and iron deficiency. Vitamin B12 deficiency, folate deficiency, gastrointestinal bleeding and...

What is a biopsy?A biopsy is a medical procedure, which is mostly used in diagnosing cancer. In this procedure, a small tissue sample is taken from your body for a closer examination under the microscope. A biopsy is usually recommended by your doctor if initial tests in your body suggest an...

Petechiae are tiny dots that appear as red, brown, or purple in color beneath the skin. They are usually seen in clusters on the stomach, buttocks, arms, and legs. However, they may also appear inside the mouth or on the eyelids. Petechiae may indicate different conditions, which can range from...

Anemia is a type of blood disorder where the number of red blood cells (RBCs) in the blood is lower than normal. Megaloblastic anemia, on the other hand, is a type of anemia that is characterized by larger than normal red blood cells (megaloblasts) and not having enough of them. When the red blood...