MP/H Rules/Histology--Thyroid: How is histology coded for a thyroid tumor described as "predominantly papillary carcinoma, tall cell variant, follicular type"?
MP/H Rules/Histology--Peritoneal primary: Can the cell types from the primary site and a metastatic site be combined to code histology? See Discussion.
MP/H Rules/Histology--Breast: What histology is coded for a tumor diagnosed as "intraductal papillary carcinoma (neuroendocrine differentiation)"? See Discussion.
MP/H rules/Histology--Lung: How is histology coded for a path diagnosis of "pleomorphic carcinoma with adenocarcinoma, squamous, clear cell and spindle components"? Please see discussion.
MP/H Rules/Histology--Breast: How is histology coded for a breast primary with a final diagnosis of "infiltrating duct carcinoma with apocrine features"? See Discussion.
MP/H Rules/Histology--Breast: How is histology coded for an "infiltrating papillary carcinoma" of the breast when there is no mention of ductal or adenocarcinoma in the pathology report?
MP/H Rules/Histology--Breast: What is the correct histology code and MP/H rule used for 1) infiltrating ductal carcinoma, mucinous type and 2) infiltrating ductal carcinoma with features of tubular carcinoma? See Discussion.