Neoplasms, Multiple Primary

Multiple Primary Neoplasms; Multiple Primary Neoplasms, Synchronous; Synchronous Multiple Primary Neoplasms; Synchronous Neoplasms; Multiple Primary Neoplasm; Neoplasm, Multiple Primary; Neoplasm, Synchronous; Primary Neoplasm, Multiple
Two or more abnormal growths of tissue occurring simultaneously. The neoplasms are histologically different and may be found in the same or different sites.