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Kidney, right interpolar neoplasm, partial nephrectomy: Oncocytic renal neoplasm of low malignant potential (ORNLMP).

Within part B, right interpolar kidney neoplasm, the neoplasm shows oncocytic features, with abundant granular eosinophilic cytoplasm and enlarged vesicular nuclei with prominent central nucleoli. The cells are arranged in small nests and tubules with hypocellular fibrous stroma identified within the background. Scattered binucleated cells are present, and rare cells with irregular nuclear membranes are present. No perinuclear halos or prominent cell membranes are present. Given the histologic features, the neoplasm is best classified as an oncocytic renal neoplasm of low malignant potential (ORNLMP).

Details

4/15/2018:  Right abdominal wall mass excision: infiltrating sebaceous carcinoma.  Noted to have a history of Muir-Torre/Lynch syndrome.

1/21/2019:  Two left upper back mass excisions and two lower back (laterality not specified) mass excisions: infiltrating sebaceous carcinomas

8/7/2019:  Excision of multiple sebaceous carcinomas from the right posterior back, left posterior thigh, left anterior abdominal wall, left anterior thigh, right scrotum, right lower abdominal fold, all positive for sebaceous carcinoma on pathology report

9/30/2020:  Right gluteal mass, left gluteal mass, back (NOS) excisions: sebaceous carcinomas.  

10/14/2020:  Right back excision: sebaceous carcinoma. Op note:  History of Lynch syndrome with multiple sebaceous carcinomas, recurrent back mass, site of prior mass resection.

10/18/2021:  Right thigh excision: sebaceous carcinoma

Proposed primaries using MP/H Other Sites Rules

#1:       4/15/2018:  C445-1

#2:       1/21/2019:  C445-2, separate from #1 per M8, same as 1/21/19 C445-9 per M18

#3:       8/7/2019:  C445-1, separate from #1 per M10, separate from #2 per M8

#4:       8/7/2019:  C447-2, separate from #1 & #3 per M8, separate from #2 per M12

#5:       8/7/2019:  C632, separate from #1 per M10, separate from #2-#4 per M11

#6:       9/30/2020:  C445-2, separate from #1 & #3 per M8, separate from #2, #4 & #5 per M10

#7:       9/30/2020:  C445-1, separate from #2, #4 & #6 per M8, separate from #1, #3 & #5 per M10; I do not think the back, NOS (C445-9) is a new primary per M18.

#8:       10/18/2021:  C447-1, separate from #2, #4 & #6 per M8, separate from #1, #3, #5 & #7 per M10

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?

12/3/2020 Pathology: AML: Blasts 40% of nucleated cells. CD45 positive, CD34 negative, CD 117+,

CD13 positive, CD33 positive in 59.6% and HLA-DR was dim and myeloperoxidase was dim.

Cytogenetics normal karyotype. The next generation sequencing detected IDH 2p.(R172K)c515>A.

Because this was AML NOS, we consulted with the physician. The physician stated the patient had AML with recurrent genetic abnormalities"and the basis for the diagnosis was the IDH-2 mutation identified on Next Generation Sequencing. We assigned 9896/3, based on the physician's interpretation of the pathology. This histology is being questioned.

LI-RADS (liver), PI-RADS (prostate), and TI-RADS (thyroid) can be used to determine reportability. BI-RADS (breast) and Lung-RADS cannot be used to determine reportability. Can these systems below to determine reportability?

C-RADS (from CT colonography)

NI-RADS (head & neck)

O-RADS (ovarian-adnexal)

Unless there is a biopsy that proves in situ tumor (EOD code 000, Tis) or extratesticular invasion into the scrotum, penis, or further contiguous extension (EOD code 700, T4), EOD Primary Tumor must be coded based on the PATHOLOGICAL assessment (orchiectomy). There are no other CLINICAL codes because the AJCC indicates imaging is not used for local T-categorization, and the EOD derives the AJCC TNM staging. If the case can not be coded to either EOD Primary Tumor codes 000 or 700 clinically, the only clinical code that seems to apply is 999 (Unknown).

We are seeing more cases treated with neoadjuvant chemotherapy prior to orchiectomy, especially in patients with distant metastatic disease. The EOD Manual indicates that clinical evidence takes priority over pathological evidencewhen neoadjuvant treatment is given, unless the extent of disease following neoadjuvant treatment is greater than pre-treatment clinical findings. If the clinical and pathological information are the same, code the extension based on the clinical information.

Do these general rules also apply to testis even though we cannot code CLINICAL findings for these tumors? If so, will EOD Primary Tumor be coded to 999 (Unknown) for any testis primary that is not in situ or invasive into the scrotum, etc., that is treated with neoadjuvant therapy? Or should the post-neoadjuvant PATHOLOGICAL assessment be coded for these tumors because the CLINICAL assessment would otherwise be unknown?

How is the EOD Primary Tumor coded for the following two cases?

1. Left testicular mixed germ cell tumor, biopsy-proven metastasis to a supraclavicular lymph node. The left testis contained a small mass on scrotal ultrasound. The patient underwent neoadjuvant chemotherapy, and the post-treatment orchiectomy proved no residual primary tumor (ypT0). Is EOD Primary Tumor 999 because it is clinically unknown (even though it was clinically limited) or 800 (No evidence of primary tumor) because there was no pathological evidence of tumor following neoadjuvant treatment?

2. Right testicular mixed germ cell tumor with biopsy-proven inguinal lymph node metastasis. There was a palpable mass in right testis on physical exam (not described as fixed or involving scrotum). The patient underwent neoadjuvant chemotherapy, and the post-treatment orchiectomy proved a residual 2 cm tumor limited to the testis without lymphovascular invasion (LVI). Is EOD Primary Tumor 999 because it is clinicallyunknown or 200 (PATHOLOGICAL assessment only - Limited to testis WITHOUT LVI)?

Rule H6 states: Code 8742/3 (Lentigo maligna melanoma) when the diagnosis is lentigo maligna melanoma with no other histologic types. However, if the diagnosis was strictly lentigo maligna or lentigo maligna melanoma, the first rule that applies is Rule H1 because lentigo maligna 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 H6. Should the H Rules be reordered? Or should an example of when one would use Rule H6 be added to clarify when to use this rule?

The physician stated the prior LUL adenosquamous carcinoma was PD-L1 negative and the LUL squamous cell carcinoma is PD-L1 positive and is calling it a new primary.

5/22-7/3/19 6000x30 IMRT Photons LUL lung Chemo refused Not a Surg candidate

10/01/2019 CT Chest: IMP: In comparison to CT chest 03/06/2019 and PET/CT 03/21/2019, left lingular mass has mildly decreased in size. Left apical anterior and posterior lung lesions more anterior lesion appears slightly increased in size, the other slight decreased in size, with adjacent areas of atelectasis and scarring.

06/23/2020 CT Chest: MP: In comparison to CT chest 10/1/2019, left lingular mass has increased in size concerning for increasing tumor with adjacent thicker focal pleural thickening involving the chest wall, concerning for possible chest wall invasion. Left apical anterior and posterior lung lesions appears more solid in appearance, representing known adeno CA, given that the appearance has changed, is concerning for residual tumor.

07/06/2020 PET: Hypermetabolic lingular mass and peripheral nodularity has increased in size and FDG avidity on the prior PET/CT. Left apical nodular opacity is difficult to separate from fairly uniform mild left apical pleural hypermetabolism which may be treatment related and/or neoplastic.