Solid tumor is a term used to describe many forms of cancer that can happen throughout the body. Some types of cancerous (malignant) tumors tend to occur in young children, and others occur in adolescents and young adults. Different tumor types tend to occur in particular body locations, leading to characteristic signs and symptoms, such as bone pain in children with bone tumors, or swelling in the abdomen in children with Wilms tumor or neuroblastoma.
Wilms Tumor :
Wilms tumor (also called Wilms’ tumor or nephroblastoma) is a type of childhood cancer that starts in the kidneys. It is the most common type of kidney cancer in children. About 9 of 10 kidney cancers in children are Wilms tumors.
Cancer starts when cells in the body begin to grow out of control. Cells in nearly any part of the body can become cancer, and can spread to other areas of the body. To learn more about how cancers start and spread, see What Is Cancer? For information about the differences between childhood cancers and adult cancers, see Cancer in Children.
Bone Tumor :
- Bone tumors can affect any bone in the body and develop in any part of the bone—from the surface to the center of the bone, called the bone marrow. A growing bone tumor—even a benign tumor—destroys healthy tissue and weakens bone, making it more vulnerable to fracture.
- When a bone tumor is cancerous, it is either a primary bone cancer or a secondary bone cancer. A primary bone cancer actually begins in bone—while a secondary bone cancer begins somewhere else in the body and then metastasizes or spreads to bone. Secondary bone cancer is also called metastatic bone disease.
Neuroblastoma :
Neuroblastoma is a cancer that develops from immature nerve cells found in several areas of the body. Neuroblastoma most commonly affects children age 5 or younger, though it may rarely occur in older children.
Neuroblastoma most commonly arises in and around the adrenal glands, which have similar origins to nerve cells and sit atop the kidneys. However, neuroblastoma can also develop in other areas of the abdomen and in the chest, neck and near the spine, where groups of nerve cells exist.
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