SEER Inquiry System - Search

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

Multiple primaries--Heme & Lymphoid Neoplasms: Is this abstracted as one primary or two?

5/2/13 Bone Marrow biopsy: myelodysplastic syndrome with approaching to acute myeloid leukemia with del 5q and 7q deletions. FISH: deletion of chromosome 5q and deletion of chromosome 7q detected.

I checked the Heme DB manual and there is no term "With approaching to". I checked the Multiple Primary calculator and it says new primary. My interpretation is that the myelodysplastic syndrome is in the process of transforming to acute myeloid leukemia.

MP/H/Multiple Primaries--Urinary: Is this one primary with a C689 primary code and morphology 8130/3? Or is this 2 primaries: 1. C679 8130/3 and 2.C680 8120/2. See discussion.

MP/H Rules/Histology--Breast: What histology code(s) and MP/H rule applies for a breast resection final diagnosis of "undifferentiated sarcoma associated with a malignant phyllodes tumor and a tumor size of approximately 7 x 6.5 x 4 cm"? (The tumor is primarily sarcoma, with the phyllodes tumor measuring 2.8 cm)? See Discussion.

Reportability--Heme and Lympoid Neoplasms--Polycythemia vera: Is secondary polycythemia vera reportable? See Discussion.

Solid Tumor Rules/Multiple Primaries--Bladder: How many primaries and what M Rule applies to a diagnosis of non-invasive urothelial carcinoma of the bladder in 1996, followed by multifocal non-invasive papillary urothelial carcinoma involving bladder, prostatic urethra, and left ureter in 2022? See Discussion.

MP/H Rules/Multiple primaries--Liver: How many primaries of the same site and histology are reported if tumors appear years apart but neither is surgically removed? See Discussion.

SEER Manual/Mets at Diagnosis--Lung: Would calvarium lesions invading the brain be both brain and bone metastasis or only bone metastasis? See Discussion.

Solid Tumor Rules (2018/2021)/Multiple primaries--Ovary, Fallopian Tube: How many primaries should be reported when patient has right fallopian tube high-grade serous carcinoma and bilateral serous tubal intraepithelial carcinoma (STIC)? See Discussion.