Cancer is a health condition in which cells grow uncontrollably, whereas a tumor is an abnormal mass of tissue that develops when cells multiply too quickly. Healthcare professionals may also refer to ...

A new definition of rectal cancer in the Netherlands prompted reclassification of cancer as sigmoid tumors, which could lead to better treatment. Rectal and sigmoidal tumors have been hard to ...

Since Henry Bence Jones first discovered a urine protein marker for multiple myeloma in 1846, the field of cancer biomarkers has grown exponentially. Over the past two centuries, scientists have ...

A mediastinal tumor is a growth that occurs in the space inside the chest, near organs such as the heart and lungs. Some of these tumors may cause symptoms, but some may not. When mediastinal tumors ...