Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Hematological malignancies are the types of cancer that affect blood, bone marrow, and lymph nodes. As the three are intimately connected through the immune system, a disease affecting one of the three will often affect the others as well. While uncommon in solid tumors, chromosomal translocations are a common cause of these diseases. This commonly leads to a different approach in diagnosis and treatment of hematological malignancies. Learn more about hematological malignancies, their symptoms, diagnosis and treatment options, in the following pages.