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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.

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

In this scenario, we record that HT began for the second primary on the date of diagnosis, and the Systemic/Surgery Sequence ends up usually being coded 4 because the HT continues even if the specific agent may be changed. This does not seem to meet the definition of neoadjuvant therapy for the second primary so we approach the staging and grade coding as just clinical/pathological? For example, if the tumor size at surgery is a little larger than estimated on imaging, we would use the pathologic size for our staging. The tumor size and grade of the second primary are not being changed by the ongoing HT. Do we have the right approach?

For example, total thyroidectomy specimen shows right lobe papillary thyroid carcinoma, 4.2 cm, unencapsulated, with numerous psammoma bodies in non-tumoral thyroid parenchyma, without angioinvasion; left lobe with papillary thyroid carcinoma, 0.6 cm, encapsulated, with capsular invasion, with intralymphatic psammoma bodies in non-tumoral thyroid parenchyma, without angioinvasion. The synoptic summary documents vascular invasion present (psammoma bodies only).

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?

ICD-O-3.2 lists microscopic thymoma as benign (8580/0) and thymoma, type A as malignant (8581/3).

January 2021: Left central neck node dissection for thyroid carcinoma with thymic tissue showing an incidental type A microscopic thymoma, described as a small (<0.2 cm) focus. Diagnosis comments further indicate this is morphologically consistent with a microscopic thymoma (type A).

Currently, First Course Therapy instruction for expectant management (also referred to as active surveillance, watchful waiting, etc.) instructs one to code 0 or 00 (not done) for all data items when the physician opts for expectant management.

We find that the treatment decisions can be driven by the patient, physician, or combination of both patient and physician depending on the options presented.

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).