Grade, Differentiation--Bladder: Some pathologists use a two component grade system for bladder carcinomas - either low grade or high grade. Should we continue to code these per SEER rules as grades 2 [low grade] and 4 [high grade]? See discussion.
Surgery of Primary Site--Prostate: What treatment code is used to represent prostate carcinoma treated with "high intensity focused ultrasound" (HIFU)?
Grade, Differentiation--All Sites: Can "Fuhrman nuclear grade" be coded if it is the only grade given for a kidney primary, or is breast the only site for which we can use a nuclear grade in coding the Grade, Differentiation field? See discussion.
Histology (Pre-2007)--Breast: What code is used to represent the histology for a single lesion with "metaplastic carcinoma" and the majority of tumor has sarcomatoid appearance? Squamous cell carcinoma and high grade intraductal carcinoma are also present. Is the term "sarcomatoid" equivalent to sarcoma?
Terminology/Terms of involvement: When the terms "lytic" or "lysis" are used in an imaging study, are they to be interpreted as synonymous with metastasis, or can these terms be used to describe a non-malignant condition?
Reportability/Ambiguous Terminology/Date of Diagnosis: If a "suspicious" cytology is reportable only when a later positive biopsy or a physician's clinical impression of cancer supports the cytology findings, is the Date of Diagnosis field coded to the later confirmation date rather than to the date of the suspicious cytology? Is a suspicious "biopsy" handled the same way?
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