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Evans Staging System
A staging system for neuroblastoma proposed by Evans, based on both the site of origin and the clinical behavior of the tumor. (NCI Thesaurus)
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Tumor spread defined as stage I or II and distant metastasis confined to the liver, skin, and bone marrow.
Tumor spread to distant anatomic sites.
Tumor spread in continuity beyond the midline or tumor spread to lymph nodes bilaterally.
Tumor spread in continuity beyond the original site of growth without crossing the midline. The lymph nodes on the homolateral site may…
Tumor confined to the original site of growth.
A person who determines the significance, worth, or condition of something by careful appraisal and study.
