Primary site/Histology: Do the 4/1/09 changes in the ICD-O-3 Site/Type Validation table regarding the coding of primary site for intestinal type adenocarcinoma mean that the former valid site/histology combinations are now impossible and require review from a given diagnosis date forward? See Discussion.
MP/H Rules/Histology--Corpus Uteri: Which MP/H rule applies in coding histology for a "high grade endometrioid adenocarcinoma with squamous differentiation (adenosquamous carcinoma)"? See Discussion.
MP/H Rules/Histology--Testis: Which MP/H rule applies in coding the histology described as a "malignant mixed germ cell tumor with the following features: Histologic type: embryonal carcinoma (97%) and yolk sac tumor (3%)"? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: Is a recently diagnosed granulocytic sarcoma followed by a diagnosis of AMLÂ two primaries? See Discussion.
Diagnostic confirmation/Date of diagnosis--Heme & Lymphoid Neoplasms: How are these fields coded for a 2/11/10 negative bone marrow biopsy with cytogenetic abnormalities if the physician makes a clinical diagnosis of refractory cytopenia with multilineage dysplasia on 2/25/10? See Discussion.
MP/H Rules/Multiple primaries--Bladder: How many primaries are to be abstracted and how are the histologies coded when a bladder resection demonstrates tumor with invasive small cell neuroendocrine carcinoma [8041/3], high grade papillary urothelial carcinoma in situ [8130/2], adenocarcinoma in situ [8140/2], and multifocal flat urothelial carcinoma in situ? See Discussion.