Reportability/Histology--Fallopian Tube: Is a diagnosis of serous tubal intraepithelial neoplasm (neoplasia) (STIN) equivalent to serous tubal intraepithelial carcinoma (STIC)? Does the designation of high or low grade have any effect on potential reportability? See Discussion.
Solid Tumor Rules (2018)/Multiple primaries--Breast: How many primaries should be reported for a diagnosis of ductal carcinoma in situ (DCIS) on core biopsy of the right breast in 2016 with all treatment refused, followed by a 2019 large right breast mass ulcerating the skin and clinical diagnosis of invasive breast cancer (patient again refused all treatment)? See Discussion.
Reportability--Vulva: Is a biopsy showing high grade squamous intraepithelial lesion (VIN II) in the vulva reportable for cases diagnosed in 2018? See Discussion.
First course treatment/Other therapy: How is Sirolimus (Rapamycin) to be coded when given with known chemotherapy agents in a clinical trial? See discussion.
Solid Tumor Rules/Histology--Other Sites: Other Sites Table 2 (Mixed and Combination Codes) requires site designations; can sites be added? See Discussion.
Reportability--Heme & Lymphoid Neoplasms: The term indolent systemic mastocytosis is listed in the 2018 ICD-O-3 Histology Update table with borderline behavior (9741/1). However, smoldering systemic mastocytosis is listed in the Hematopoietic and Lymphoid Database (Heme DB) as an alternate name for histology 9741/3. Are smoldering systemic mastocytosis and indolent systemic mastocytosis synonymous? If so, should smoldering systemic mastocytosis also be removed from the Heme DB alternate names listing? See Discussion.
Reportability/Histology--Pancreas: According to SINQ 20140058, solid pseudopapillary neoplasm of the pancreas is reportable (as of 2014). However, per ICD-O-3.2, this histology is not reportable until 2021+. Please clarify which is correct and clearly state the timeframe that it was reportable or not reportable.
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