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SEER Inquiry System - Report
Produced: 05/08/2026 3:36 PM
Question 20031174
Inquiry Details
References:
#1: SEER Program Code Man, 3rd Ed, 11. January 1998
#2: 2004 SEER Manual, 11
Question:
Discussion:
Example 1. Patient was diagnosed with right breast cancer in 1999 and underwent lumpectomy followed by radiation therapy. In 2001, patient was again found to have right breast cancer and was admitted for mastectomy. The surgeon stated that this was recurrence. The patient's primary care physician stated the patient had a new primary. Is there a priority order if the multiple physicians involved in a patient's care do not agree on the diagnosis?
Example 2. Patient was diagnosed in 1998 with left breast cancer. In 2000, the patient again was diagnosed with left breast cancer. There was no mention of recurrence so case was accessioned as a second primary. In 2003, patient was again admitted for an unrelated disease. In the H&P, the physician stated that the patient had recurrent breast cancer in 2000. Do we remove the second primary from our file based on this statement three years later?
Example 3. Patient was diagnosed with Paget's disease with intraductal carcinoma, left breast, in 1997. In August 2002, patient underwent left mastectomy for DCIS, left breast. In November 2002, patient's oncologist stated that patient had been on Evista for 5 years and had recurrent cancer despite Evista. Do we accession this as one or two primaries?
Answer:
For tumors diagnosed prior to 2007:
Use the best information available. In general, information from the time closest to the event in question is more accurate than later information. The opinion of the pathologist tends to be the most valuable. Beyond that, SEER has not established a hierarchy of physician opinions.
Be aware that a physician's use of the term "recurrence" does not always mean that the second tumor originated from cells from the first tumor.
Examples 1, 2 & 3. Follow SEER rules for determining multiple primaries. In each case, the diagnoses are more than two months apart. Abstract as two primaries.
For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.
