What is a ganglioneuroma composed of?

A ganglioneuroma is indeed composed of mature Schwann cells and mature ganglion cells. This type of tumor is a benign neoplasm that typically arises in the nervous system. The presence of mature cells indicates that the tumor develops from well-differentiated cells, which contributes to its generally favorable prognosis.

This composition contrasts with other types of tumors. For example, a tumor of immature nerve cells would suggest a neuroblastoma, which involves undifferentiated or immature nerve cells often found in younger patients. Additionally, a tumor related to skeletal muscle cells would refer to different neoplasms such as rhabdomyosarcoma, which is not associated with nerve tissue at all. Finally, a type of brain tumor could encompass a wide range of neoplasms affecting the brain, but ganglioneuromas are specifically classified outside this category. Understanding this composition helps in diagnosing and determining the treatment for conditions involving the peripheral nervous system.