SEER Inquiry System - Search

MP/H Rules/Histology- -Melanoma: What is the correct histology code if the final diagnosis for an excisional biopsy specimen is reported as "malignant melanoma, superficial spreading type" but the under the "cell type" section in the CAP protocol layout of the pathology report it lists "cell type: epithelioid"? See Discussion.

MP/H Rules/Behavior--Breast: How many primaries are to be abstracted for a patient with a history of left breast ductal carcinoma in situ (DCIS) diagnosed in 2014 and bone lesions showing metastatic carcinoma consistent with a breast primary in 2017? See Discussion.

MP/H Rules/Behavior--Appendix: How do you code mucinous cancers of the appendix? Is a "low grade mucinous appendix tumor/neoplasm" with peritoneal spread reportable? See Discussion.

MP/H Rules--Lung: Per rule M8, tumors of the same site (left lung), same histology (NSCC), greater than 3 yrs apart are separate primaries.

However, there was a recurrence to mediastinal LNs after 2 years. Would that make a difference as to whether the 2008 left lung carcinoma is reportable as a new primary or not? See Discussion.

MP/H Rules--Lung: How do we interpret 'spiculated opacities?' How many primaries do we abstract for this patient? See Discussion.

MP/H Rules--Histology: How is histology coded when a metastatic site is biopsy positive for adenocarcinoma, but the physician clinically states this is cholangiocarcinoma? See discussion.

MP/H Rules--Breast: Patient has 2 existing primaries, both of left breast and both were pure lobular carcinoma, one was diagnosed in 1994 and the other in 2005. Now a biopsy in 2008 of a supraclavicular lymph node (laterality unknown) and subcutaneous scalp tissue show metastatic DUCTAL carcinoma. Per path report, breast is the primary site. Slides from prior tumors were not reviewed. Should this be made a new primary or assumed to be metastasis from the prior breast tumors? See Discussion.

MP/H Rules--Breast: Is a ductal carcinoma diagnosed in August, 2008 following a lobular-ductal primary diagnosed in February 2007 a new primary? See Discussion.

MP/H Rules--Breast: How many primaries for the following?

Breast lumpectomy: Three foci of invasive ductal carcinoma.

Tumor nodule #1 - Invasive ductal carcinoma.

Tumor nodule #2 - Invasive ductal carcinoma with tubular features.

Tumor nodule #3 - Invasive tubular carcinoma.

See Discussion.

MP/H Rules--Breast: How many primaries are abstracted if a mastectomy specimen reveals two separate invasive tumors:

#1: Invasive apocrine carcinoma, poorly differentiated, 1.2cm, (9 o'clock). -Apocrine ductal carcinoma in situ (DCIS), high-grade with comedo necrosis; 2.0cm (9:30 o'clock).

#2: Invasive ductal carcinoma, well-differentiated, 1.0cm (12:30 o'clock). -Minor component of DCIS, low-grade? See Discussion.