SEER Inquiry System - Search

Solid Tumor Rules/Multiple Primaries: What M Rule of the updated Solid Tumor Rules, Other Sites, applies to a 2022 diagnosis of endometrial cancer, followed greater than one year later by a 2023 diagnosis of esophageal cancer with no interim evidence of tumor recurrence? See Discussion.

Multiple Primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned and what M rule applies when a patient is diagnosed with both plasmablastic lymphoma and at least one plasmacytoma? See Discussion.

Solid Tumor Rules (2018)/Histology--Head & Neck: How is histology coded for a glossotonsillar sulcus tumor with both squamous cell carcinoma and mucoepidermoid carcinoma? See Discussion.

MP/H Rules/Multiple primaries--Melanoma: Is a melanoma with an unknown laterality a different laterality for the purposes of applying Multiple Primaries/Histology Rule M4? See Discussion.

MP/H Rules/Multiple primaries--Bladder: How many primaries should be reported for the case below? See discussion.

Solid Tumor Rules/Multiple primaries--Breast: How many primaries should be abstracted when papillary carcinoma is identified in two biopsies and a subsequent lumpectomy identified invasive ductal carcinoma with multifocal ductal carcinoma in situ (DCIS)? 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.

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