SEER Inquiry System - Search

Solid Tumor Rules/Multiple Primaries--Lung:  How many cases should be abstracted for a patient with 2022 wedge biopsy of right upper lobe acinar predominant lung adenocarcinoma and wedge biopsy of right lower lobe lepidic predominant adenocarcinoma if there is concern for diffuse spread throughout the lungs secondary to the lymphangitic carcinomatosis and possible diffuse pneumonic type of adenocarcinoma? See Discussion.

Solid Tumor Rules/Multiple Primaries--Lung: How many primaries should be reported when two separate squamous cell carcinoma (SCC) tumors, one in the left upper lobe (LUL) and one in the right lower lobe (RLL), are diagnosed? The tumors are separated by an interval occurring right hilar lymph node biopsy proving metastatic pulmonary adenocarcinoma without a clear description of a corresponding interval occurring lung tumor. See Discussion.

Solid Tumor Rules/Multiple primaries--Lung: How many primaries should be accessioned for the following patient scenario?

1) 09/2014 Left upper lobe (LUL), unifocal, localized acinar adenocarcinoma (8550/3) treated with lobectomy.

2) 04/2016 Right lower lobe (RLL), unifocal, localized acinar adenocarcinoma (8550/3) treated with wedge resection.

3) 04/2019 (within 3 years, but masked full date) Left lower lobe (LLL), unifocal, non-small cell carcinoma (8046/3) with brain metastasis. See Discussion.

Solid Tumor Rules/Multiple Primaries--Lung: How many primaries are accessioned when a patient is diagnosed with right lower lobe invasive acinar adenocarcinoma (8551/3) in 2018 and treated with lobectomy, followed by a 2019 right middle lobe cancer (NOS, 8000/3) diagnosed as new stage 1 primary by cancer conference? See Discussion.

Solid Tumor Rules/Multiple Primaries--Head and Neck:  Is a patient with 2020 neck mass, squamous cell carcinoma (SCC), p16-negative, who then had a biopsy of the right tonsil (C09.9) in July 2022, SCC p16-positive, one or two primaries? Is this coded to 8070/3 using pre-2022 rules or a new, second primary p16-positive, 8085/3.  See Discussion.

Solid Tumor Rules/Multiple Primaries--Head and Neck: Is a 11/2023 diagnosis of invasive squamous cell carcinoma (SCC) in lower gum (C031) a new primary and what rules apply for a patient with 09/2017 invasive SCC of lower gum (C031) and 05/2022 invasive SCC of lateral tongue (C023)? See Discussion.

Solid Tumor Rules/Multiple Primaries--Breast:  Is an in situ tumor followed by an invasive tumor a single or multiple primaries?  See Discussion.

Solid Tumor Rules/Multiple Primaries--Breast:  How many primaries are accessioned when a 2020 diagnosis of invasive ductal carcinoma treated by lumpectomy is followed by a 2023 diagnosis of invasive lobular carcinoma treated by mastectomy?  See Discussion.

Solid Tumor Rules/Multiple Primaries--Breast:  How many primaries should be accessioned for a diagnosis of invasive carcinoma of the left breast (8500/3) in 2020 followed by a 2023 diagnosis of dedifferentiated carcinoma in the left breast (8020/3)?  See Discussion.

Solid Tumor Rules/Multiple Primaries--Breast: How many primaries should be accessioned for a patient with known history of right breast carcinoma in 2018 followed by 2022 biopsy proven right and left breast invasive ductal carcinoma if the physician states this is a right breast primary with widespread metastasis including the left breast? See Discussion.