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Framework that allows defining file formats (layouts) and use them to read and write data files.
Alternate Name
Item#
Length
Source of Standard
Column #
Multiple Tumors Reported as Single Primary
Type of Multiple Tumors Reported As One Primary
444
2
SEER
577-578
Description
This data item is used to identify the type of multiple tumors in cases with multiple tumors that are abstracted and reported as a single primary using the SEER, IARC, or Canadian Cancer Registry multiple primary rules. Multiple tumors may individually exhibit in situ, invasive, or a combination of in situ and invasive behaviors. Multiple intracranial and central nervous system tumors may individually exhibit benign, borderline, malignant, or a combination of these behaviors. Multiple tumors found in the same organ or in a single primary site may occur at the time of initial diagnosis or later.
Rationale
Patients with multiple tumors that are currently reported as a single primary may have a worse prognosis or more extensive treatment than patients with a single tumor. This data item will make it possible to identify important information about these cases for data analysis, and to compare individually reported cancer cases with historical data if the rules are changed.
Codes (refer to http://seer.cancer.gov/tools/mphrules/index.html for additional instructions).
00
Single tumor
10
Multiple benign
11
Multiple borderline
12
Benign and borderline
20
Multiple in situ
30
In situ and invasive
31
Polyp and adenocarcinoma
32
FAP with carcinoma
40
Multiple invasive
80
Unknown in situ or invasive
88
NA
99
Unknown