A nurse is caring for a child who has been diagnosed with malignant neuroblastoma. Which of the following findings should the nurse expect?

A. The tumor originated in the adrenal glands: Neuroblastoma is a malignancy of the sympathetic nervous system, most commonly arising in the adrenal medulla. It can also develop along the sympathetic chain in the neck, chest, or abdomen. Adrenal origin accounts for approximately 40% of cases in children. B. The tumor has not spread to other areas of the child's body: Neuroblastoma is often metastatic at diagnosis, commonly spreading to bones, bone marrow, lymph nodes, liver, and skin. Localized tumors are less common, and assuming no spread is inaccurate. C. The tumor came from malformation of astrocyte glial brain cells: Tumors of astrocytes are classified as astrocytomas or gliomas, which are primary brain tumors. Neuroblastoma arises from neural crest cells, not glial cells. D. The tumor is located in the lower back of the brain in the midline posterior fossa: This description is characteristic of medulloblastoma, a central nervous system tumor. Neuroblastoma originates in peripheral sympathetic tissue, not the posterior fossa of the brain.