11-21-2025
Scenario: Case abstracted after Registry Software converted to v25
- 01/15/2023: LUL Wedge with Invasive Acinar Adenocarcinoma with Lepidic Component
- 3/14/2024 MD states: CT chest shows multiple ground glass opacities and multiple part solid nodules and stable mediastinal adenopathy. Overall, these changes are concerning for malignancy
- 10/18/2024 RUL transbronchial biopsy: Lepidic Adenocarcinoma
- Post biopsy PET states there are multiple ill-defined nodules and ground glass nodules within both lungs. Grossly stable w/interval enlargement of RUL nodule.
- Med Onc states not a surgical candidate and patient starts treatment.
Question: How many primaries?
- Single
- Multiple
Answer: Multiple
Solid Tumor Rules Lung Rule M6 Abstract multiple primaries when separate/non-contiguous tumors are two or more different subtypes/variants in Column 3, Table 3 in the Equivalent Terms and Definitions. Timing is irrelevant.
- Seq 01 dx 01-15-2023 LUL 8551 Acinar Adenocarcinoma
- Solid Tumor Rules Lung-Terms that are NOT Equivalent or Equal-Component is not equivalent to type/subtype/variant so left with Acinar Adenocarcinoma
- Seq 02 dx 10-18-2024 RUL 8250 Lepidic Adenocarcinoma
