Reportability/Histology (Pre-2007)/Behavior Code/Primary Site: How would you code these fields for a case in which an infant presents with a skin rash, enlarged spleen, palpable abdominal mass, inconclusive bone marrow biopsy and a skin biopsy that was positive for "Langerhans cell histiocytosis"? See discussion.
Multiple Primaries (Pre-2007)--Bladder/Prostatic Urethra: Is the prostatic urethra a new primary for a case with a history of recurrent noninvasive bladder cancer that was subsequently diagnosed with transitional cell carcinoma in situ of the prostatic urethra and had a subsequent clinical diagnosis of "refractory bladder carcinoma"?
Laterality/Multiple Primaries (Pre-2007)--Ovary: Are ovarian primaries with bilateral involvement always coded to laterality 4 (bilateral)? See Description.
Multiple Primaries (Pre-2007)/Histology (Pre-2007)--Lung: How is histology coded for the tumor(s) that exist if a left upper lobe of lung resection final diagnosis states the patient has a moderately differentiated adenocarcinoma and the path indicates there are "multiple carcinoid tumorlets"?
Histology (Pre-2007)--Cervix: Is 8384/3 [adenocarcinoma, endocervical type] a specific histology type that must be stated or does it apply to any adenocarcinoma arising in the endocervical? Should the ICD-O-3 histology code of 8384/3 [Adenocarcinoma, endocervical type] be used for final diagnoses of "adenocarcinoma of the endocervix" or "adenocarcinoma of the cervix"?
Histology (Pre-2007)--Stomach: What code is used to represent the histology of "mucin-secreting adenocarcinoma, intestinal type "for a stomach primary?
Histology (Pre-2007): Can the histology code 8582/3, "thymoma, mixed type, malignant" only be used when you have a thymoma with both type A and type B features? See discussion.
Histology (Pre-2007): What code is used to represent the histology "papillary adenocarcinoma: mixed serous, endometrioid and mucinous subtypes"? 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?
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