Secondary malignant neoplasm

{{Infobox medical condition (new)

| name = Secondary malignant neoplasm

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| field = Oncology

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Secondary malignant neoplasm is a malignant tumor whose cause is the treatment (usually radiation or chemotherapy) which was used for a prior tumor.{{cite web|url=http://cancer.unm.edu/cancer/cancer-info/cancer-treatment/side-effects-of-cancer-treatment/long-term-side-effects/secondary-malignancies/|title=Secondary Malignancies|publisher=}} It must be distinguished from Metastasis from the prior tumor or a relapse from it since a secondary malignant neoplasm is a different tumor.