Which type of cancer is classified as a solid tumor and mostly seen in infants and young children?

Neuroblastoma is classified as a solid tumor that primarily affects infants and young children. It originates from neural crest cells, which are involved in the development of the sympathetic nervous system. This cancer commonly arises in the adrenal glands but can also develop in nerve tissue along the spine, chest, abdomen, and pelvis.

The classification of neuroblastoma as a solid tumor is significant because these tumors are characterized by a mass of tissue that can form in various organs, differing from cancers such as leukemia, which affects the blood. The age factor is critical, as neuroblastoma is most frequently diagnosed in children under the age of 5, making it one of the most common childhood cancers.

Understanding the nature of neuroblastoma helps in recognizing its presentation, prognosis, and the typical treatment approaches that are taken for such tumors in pediatric patients. This information is essential for healthcare professionals dealing with oncological care in young populations.