Malignant peripheral nerve sheath tumor arising in an adrenal ganglioneuroma in an adult male homosexual.

The authors report a case of malignant peripheral nerve sheath tumor arising in an adrenal ganglioneuroma in an adult. This is the first such case occurring in the absence of a history of childhood neuroblastoma treated with radiation, and provides evidence that such a transformation can occur spontaneously. The neoplasm demonstrated a highly malignant biologic behavior with rapid growth, local recurrence, and metastasis.