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Report Produced: 02/26/2026 18:00 PM

Report Question ID Question Discussion Answer Year
20021142 Date of Diagnosis: If an originally diagnosed "benign" tumor is later discovered to have "metastasized", should the date of diagnosis be back-dated to the date the original tumor was discovered or to the date the metastatic disease was identified? Code the Date of Diagnosis field to the date the malignancy is diagnosed. If there was a medical or pathologic review of the original benign diagnosis that indicates that the patient had cancer at the earlier time, then the earlier date is coded as the date of diagnosis. If no medical or pathologic review of the original benign diagnosis is done, then code the date of diagnosis to the date the metastasis is discovered. 2002
20021165 EOD-Size of Primary Tumor--All Sites: Is there a hierarchy for using information from clinical tests (scans, radiography) to determine clinical tumor size? When the size on a radiographic report prior to pathologic diagnosis is smaller than the size of the tumor on the radiographic report that is post pathologic diagnosis, which tumor size should be used? See discussion.

Which size should be used for these examples?

1) Tumor size on a mammogram is smaller than the tumor size on an ultrasound.

2) CT of the lung reveals a 2.5 cm RUL malignancy in June. A biopsy in July confirms a malignancy. A CT is done in August prior to initiating RT which reveals a 3.1 cm RUL nodule.

For cases diagnosed 1998-2003:

Generally, code the EOD-Size of Primary Tumor field to the largest size identified in any scan. Use the largest tumor size for most cases. There is no hierarchy for multiple imaging studies, with the exception of the two situations represented in the question examples.

1). Code the size stated on the mammogram, even if that size is smaller than the one specified on the ultrasound. Generally the mammogram size is more accurate for breast cases than ultrasound.

2). Code the EOD-Size of Primary Tumor field to 2.5 cm. In this example, the second scan was the same type as the first. Usually there is not that much of a difference in size between the same tests, unless the tumor has an aggressive histology. The example does not mention the histology. With certain histologies, such as small cell of the lung, a rapid growth in a short amount of time is the normal process. The fact that the size increased that much in a short period of time, using the same type of scan, is an indication of a rapidly growing tumor. It would be better to use the size on the initial scan to code the EOD-Size of Primary Tumor.

 2002
20021060 EOD-Size of Primary Tumor: The EOD Manual instructs us not to code the size of a cyst. Can we code the size of tumor lesions described as being multicystic, multiloculated, or as a complex mass with cystic areas? See discussion.

Example 1: Large multicystic ovarian mass lesion measuring 10 cm. Sections through the specimen show a multicystic and solid mass with abundant fluid exuding from the cut surfaces (Size of the solid portions is not stated).

Example 2: A brain MRI: 9-cm. complex mass with cystic areas.

For cases diagnosed 1998-2003:

Yes, if the cystic mass is pathologically confirmed to be malignant, code the EOD-Size of Primary Tumor field based on the size of the mass in the absence of a more precise tumor size description. For the examples in the discussion section, code the EOD-Size of Primary Tumor field to: 1) 100 [10 cm]. 2) 090 [9 cm].

As a point of interest, the size of tumor for ovarian and brain primaries is not used in either analysis or as a prognostic indicator for survival. Therefore, spending time separating the cystic and solid portions of the tumor is unnecessary.

 2002
20021047 Surgery of Primary Site--Bladder: Do we code "random bladder biopsies" as an excisional biopsy (27) or as no cancer directed surgery (00) even if the only involvement mentioned on the pathology reports is "focal carcinoma in situ"? Code the Surgery of Primary Site field to 00 [None; no surgery of primary site] when only random biopsy procedures are performed on the bladder. 2002
20021185 Surgery of Primary Site--Major salivary gland: How do you code Surgery of Primary Site for a submandibular gland primary when the operative report refers only to an excision of the submandibular "tumor" while the pathology report states the submandibular "gland" was removed? See discussion. The gross description on the pathology report indicates that the specimen consists of a "submandibular gland." A further description on the pathology report included, "the specimen was sectioned exposing a focally cystic mass that nearly replaces the entire specimen." For cases diagnosed on 1/1/2003 or after: Code the Surgery of Primary Site field to 40 [Total parotidectomy, NOS; total removal of major salivary gland, NOS], per the pathology report's gross description of the specimen unless the operative report description of procedure indicates that the removal was less than total. 2002
20021176 Histology (Pre-2007)/Multiple Primaries (Pre-2007)--Breast: What code is used to represent histology for a case with a biopsy specimen that reveals "infiltrating ductal carcinoma with ductal carcinoma in situ, comedo subtype, non-extensive" in one quadrant of the breast and a mastectomy specimen with "invasive pleomorphic lobular carcinoma with lobular carcinoma in situ" in another quadrant of the breast? Paget disease is identified in the nipple section.

For tumors diagnosed prior to 2007:

Code the Histology field to 8522/3 [infiltrating duct and lobular carcinoma]. We are choosing the ductal and lobular combination over the Paget disease and lobular combination because it is more important for analysis purposes.

Be careful in using combination codes to code separate tumors in different locations of the same breast as a single primary. Currently there are only three combination codes for the breast that allow for this situation, 8522 [duct and lobular], 8541 [Paget disease and infiltrating duct] and 8543 [Paget disease and intraductal]. Other histologic type differences that occur as separate tumors in different parts of the same breast are coded as multiple 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.

 2002
20021204 EOD-Size of Primary Tumor--Cervix: When both a depth and diameter of the tumor are provided and the description of the diameter is provided in a range, how do you code the size of the primary tumor? See discussion.

Path states "microscopic focus of endocervical glands considered invasive adenoca...maximum depth of that focus measures approximately 2 mm. Maximum diameter of that focus measures 3-4 mm."

What size would be coded for this case: 999, 002, 003, or 004?

Code the EOD-Size of Primary Tumor field to 004 [4 mm]. Code the diameter dimension in the EOD-Size of Primary Tumor field and the depth dimension iin the EOD-Extension field. Code the largest number associated if a range is provided for the diameter of the invasive tumor.

If the size of the diameter had not been mentioned, the EOD-Size of Primary Tumor field would have been coded to 001 [microscopic focus or foci only], which ignores the size associated with the depth dimension of the tumor.

 2002
20021213 Reportability/Behavior Code--Bone Marrow: Is T-cell large granular lymphocytic leukemia SEER reportable? Pages 102, 147, 156, 160-162 and 167 of the ICD-O-3 list it as 9831/1, but on page 17 this is listed as 9831/3.

For cases diagnosed prior to 1/1/2010:T-cell large granular lymphocytic leukemia [9831] is a very indolent form of leukemia. It was assigned a behavior code of 1 by the editors of ICD-O-3 (as noted on pages 102, 147, 156 160-162, and 167 of the ICD-O-3 manual). The table on page 17 is the World Health Organization list of hematopoietic and lymphoid tumors. WHO recognizes TCLGLL as a malignancy. The disease is infrequently symptomatic enough to be diagnosed. However, when any of the terms listed with code 9831 are described as malignant or aggressive, report to SEER as a malignancy with a behavior code of /3.

For cases diagnosed 2010 forward, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.

 2002
20020069 Reportability--Hematopoietic, NOS: Is "evolving" multiple myeloma reportable to SEER?

For cases diagnosed prior to 1/1/2010:No, it is not SEER reportable. The diagnosis of "evolving" multiple myeloma could represent a plasmacytoma, plasma cell dyscrasia or another lymphoproliferative disorder. Some of these histologies are SEER reportable, but some are not. Additional information would be needed to determine reportability. If you are unable to obtain more information, the case is non-reportable.

For cases diagnosed 2010 forward, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.

 2002
20021146 Primary Site--Lymphoma: Is the primary site likely to be extranodal for a lymphoma that presents in an extranodal site and lymph nodes which are regional for that site? Is the primary site also likely to be extranodal if an extranodal site and lymph nodes are excised? See discussion. Example: Work-up included a negative CXR. A CT showed multiple dilated loops of small bowel consistent with obstruction and nodular prominence at the base of bladder. Laparotomy with resection of small bowel and multiple biopsies of enlarged mesentric lymph nodes performed. Final path diagnosis: Lymphoma in a "mesenteric mass" and in "small bowel." There was no mention of lymph nodes in the final diagnosis and the detailed micro described the mesenteric mass as just adipose tissue replaced by lymphoma. However, the gross for that specimen states 4 lymph nodes were found in the fat. The small bowel micro described an ulcerated lesion of the small bowel extending into muscularis.

For cases diagnosed prior to 1/1/2010:Code the Primary Site field to C17.9 [small bowel] for the example. When an extranodal organ and that organ's regional nodes are involved, the extranodal site is most likely the primary, unless there is extension from the regional nodes to the organ. If the primary site cannot be determined for a lymphoma diagnosed in both a nodal and extranodal site, code to C77.9 [lymph nodes NOS].

For cases diagnosed 2010 forward, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.

 2002