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Update to current manual/SS2018--Breast: Should Code 3 of the Summary Stage 2018 (SS2018) for Breast designate the intramammary and infraclavicular lymph nodes as being ipsilateral? Similarly, should Code 7 designate infraclavicular lymph nodes as contralateral/bilateral? Laterality (ipsilateral, contralateral/bilateral) is included for axillary and internal mammary nodes in the respective codes.

Update to current manual/EOD 2018--EOD Primary Tumor: Should Note 6 in Extent of Disease (EOD) Primary Tumor for the schemas Fallopian Tube, Ovary, and Primary Peritoneal Carcinoma be revised to exclude pelvic sites? See Discussion.

Reportability--Behavior: Is reportable if it shows invasion or microinvasion pathologically? See Discussion.

Laterality--Head and Neck: Were the topography codes C090 and C091 intentionally left off of the Sites for Which Laterality Codes Must Be Recorded table in the 2018 SEER Manual? The codes were also removed from Table 10 in the 2018 Solid Tumor Rules for Head and Neck but appear under coding instructions 1b. and 6b. in the manual.

Reportability--Skin: Is an atypical smooth muscle cell proliferation of the skin reportable? See Discussion.

Reportability/Histology--Bladder: Is papillary urothelial neoplasm of low malignant potential (PUNLMP) (8130/1) reportable when also referred to as papillary transitional cell carcinoma, grade 1, no invasion (8130/2) previously? See Discussion.

First Course Treatment/Surgery of Primary Site--Breast: How is "Goldilocks," also referred to as oncoplastic reconstruction, in the surgery section for breast cancer patients coded?

Reportability--Skin: Is atypical intradermal smooth muscle neoplasm (AISMN) of the skin reportable? The comment on the path report states: Atypical intradermal smooth muscle neoplasm (AISMN) was previously termed "cutaneous leiomyosarcoma."

MP/H Rules/Multiple primaries--Breast: Please confirm Multiple Primaries/Histology Breast Rule M8 applies in this 2017 case. The surgical resection is >60 days past the biopsy date but is it possible treatment plans for breast could span >60 days and this is one primary? See Discussion.

Primary Site--Bladder: Does instruction #4 in the Urinary Sites Solid Tumor Rules Instructions for Coding Primary Site apply to a mix of in situ and invasive urothelial tumors?

Instruction #4: Code Urinary System NOS C689 when there are multiple non-contiguous tumors in multiple organs within the urinary system.

See Discussion.