What is a tumor? A tumor, or neoplasm, is a mass of abnormal cells that form in your body. Tumors can affect tissues, glands, organs, skin and bone. They can be big or small. You can …

Jun 10, 2025 · A neoplasm, or tumor, is an abnormal growth of tissue that can be benign or cancerous. Medical oncologist Matthew Wright, M.D., shares what you should know about …

Mar 31, 2025 · When a neoplasm forms into an abnormal growth, mass, or lesion, it’s called a tumor. Unlike cysts, tumors are usually solid and firm because they are filled with clumps of …

Each tumor site and type presents its own specific set of clinical manifestations. However, there are a number of common clinical presentations, or syndromes, caused by many different kinds …

Jun 12, 2023 · A tumor, also known as a neoplasm, is an abnormal lump or growth of tissue that forms in or on the body. Tumors can form anywhere in the body.

Nov 16, 2023 · There are three main types of tumor; benign, premalignant, and malignant. If someone has a malignant tumor, it is cancerous. Other types of tumor are not cancerous.

Jul 29, 2024 · A tumor is a cluster of abnormally growing cells that may or may not be cancerous. This article overviews the types, how they look, and diagnosis.

tumor (TOO-mer) An abnormal mass of tissue that forms when cells grow and divide more than they should or do not die when they should. Tumors may be benign (not cancer) or malignant …

Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. [2][7] These contrast with benign tumors, which do not …

Jun 9, 2024 · What is a tumor? The first thing to understand is that tumors start as clumps of cells "that begin to grow abnormally to form a mass," says Dr. Julie Gralow, the chief medical officer …