<unk> s are derived from the primordial neural crest cells, which are undifferentiated cells of the sympathetic nervous system. Genes involved in the pathogenesis of<unk>  include MYCN oncogene and chromosome 1p36. On gross pathology,<unk> s are characterized by solid, white, firm, well-circumscribed, and nodular tumors. On microscopic histopathological analysis,<unk> s are characterized by spindle-shaped cells with cell borders in a fibrillar matrix containing ganglion cells with large round nuclei, prominent nucleoli, and abundant eosinophilic cytoplasm.
Ganglioneuroma pathophysiology
Schwannoma pathophysiology
Lymphangioma pathophysiology
Glomus tumor pathophysiology
Neurofibroma pathophysiology
Hemangioma pathophysiology
Acoustic neuroma pathophysiology
Meningioma pathophysiology