Collaborative Stage for TNM 7 - Revised 11/12/2010  [ Schema ]

MerkelCellVulva

CS Site-Specific Factor 18
Isolated Tumor Cells (ITC) in Regional Lymph Node(s)

CodeDescription
000Regional lymph nodes negative on routine hematoxylin and eosin (H and E) stains,  no immunohistochemical (IHC) studies for isolated tumor cells (ITC) done (CK20, CAM 5.2, pancytokeratins) or unknown if IHC studies done   
Nodes clinically negative, not examined pathologically
010Regional lymph nodes negative on routine H and E, IHC studies done (CK20, CAM5.2, pancytokeratins) and ITCs NOT PRESENT
020Regional lymph nodes negative on routine H and E,  IHC studies done (CK20, CAM 5.2, pancytokeratins) and ITCs  PRESENT
090Regional lymph nodes negative on routine H and E, positive for tumor detected by IHC, size of tumor cell clusters or metastases not stated
100Regional lymph nodes positive with ITCs on routine H and E
200Regional lymph nodes positive with ITCs, NOS, method of detection not stated
300Regional lymph nodes positive other than ITCs
(Tumor cells greater than 0.2 millimeter (mm))
988Not applicable: Information not collected for this case
(If this information is required by your standard setter, use of code 988 may result in an edit error.)
999Unknown or no information
Not documented in pathology report or patient record