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Additional comments in this pathology report state "The entire case was sent in consultation to an ophthalmic pathologist. [Pathologist] assigns a conjunctival melanocytic intraepithelial neoplasia (C-MIN) score of 2-3 due to the upward pagetoid migration of small, dendritic melanocytes. A C-MIN score of 2-3 is between low-grade conjunctival melanocytic intraepithelial lesion (LG-CMIL; C-MIN 2) and high-grade conjunctival intraepithelial lesion (HG-CMIL; C-MIN 3). The older terminology for this lesion would be primary acquired melanosis (PAM) with mild to focally moderate atypia."

This term does not appear in the SEER Program Coding and Staging Manual (SPCSM), Appendix E1 of the SPCSM, or Solid Tumor Rules (specifically rule H3) . 

Rule H4 states: Code 8723/3 (malignant melanoma, regressing) when the diagnosis is regressing melanoma. However, if the diagnosis was strictly regressing melanoma or malignant melanoma, regressing, the first rule that applies is Rule H1 because regressing melanoma is a single, specific histologic type and Rule H1 states: Code the histology when only one histologic type is identified. Following the current rules, one would never arrive at Rule H4. Should the H Rules be reordered? Or should an example of when one would use Rule H4 be added to clarify when to use this rule?

CAP Protocol for the Examination of Cystectomy Specimens From Patients With Carcinoma of the Urinary Bladder/Treatment Effect Post Neoadjuvant Chemotherapy (BCG not included) selections

o No known presurgical neoadjuvant therapy

o Complete response: Absence of histologically identifiable residual cancer cells and extensive fibrosis of the tumor bed after presurgical neoadjuvant therapy (TRG1)

o Strong response: Predominant fibrosis of the tumor bed, with residual cancer cells occupying less than 50% of this area (TRG2)

o Weak or no response: Residual cancer cells occupying ≥50% of the tumor bed or absence of regressive changes (TRG3)

o Other (specify): _________________

SEER Coding Instruction for Site-Specific Codes for Neoadjuvant Therapy Treatment Effect - Schemas: All Other Schemas selections

0 Neoadjuvant therapy not given/no known presurgical therapy

1 Complete pathological response

Present: No viable cancer cells/no residual invasive carcinoma identified

Residual in situ carcinoma only

2 Near complete pathological response

Present: Single cells or rare small groups of invasive cancer cells

3 Partial or minimal pathological response

Present: Residual invasive cancer with evident tumor regression, but more than single cells or rare small groups of cancer cells

4 Poor or no pathological response

Absent: Extensive residual cancer with no evident tumor regression

6 Neoadjuvant therapy completed and surgical resection performed, response not documented or unknown

Cannot be determined

7 Neoadjuvant therapy completed and planned surgical resection not performed

9 Unknown if neoadjuvant therapy performed

Unknown if planned surgical procedure performed after completion of neoadjuvant therapy

Death Certificate only (DCO)