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Steven

@STEVENKOLKERMD

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dermatopathologist https://t.co/v1HQU4EWCV

Santa Monica, CA
Joined May 2015
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@STEVENKOLKERMD
Steven
8 years
One of our lab assistants made me melanoma cookies as a parting goodbye. I was touched.
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@STEVENKOLKERMD
Steven
7 hours
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@grok
Grok
17 days
What do you want to know?.
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@STEVENKOLKERMD
Steven
1 day
Should we be using the Her2 IHC 0+ designation, even though the concordance among pathologists (0 vs 0+ is not very good. 0+ is defined as faint membrane staining in >0 but ≤10% of tumor cells (so-called Her2 ultralow).
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e13156Background: Breast Cancer (BC) patients are classified as HER2-positive (IHC3+ or IHC2+/ISH+) or HER2-negative (IHC0, IHC1+ and 2+/ISH-). Within the HER2-negative category, patients who meet...
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@STEVENKOLKERMD
Steven
1 day
From a BCC excision. BCC, mantleoma/mantle, basaloid hamartoma?
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@STEVENKOLKERMD
Steven
2 days
Nodular type basal cell carcinoma should be split up into two types. BCC, small nodular type (on the left) and BCC, large nodular type (on the right). To me, the picture on the left is different than so-called micronodular BCC, but that is debatable.
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@STEVENKOLKERMD
Steven
3 days
Seborrheic keratosis or Epidermal change over a DF. Most likely the latter. Can you guess the location?
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@STEVENKOLKERMD
Steven
3 days
A. Both BCC.B. Left BCC, right trichilemmoma .C. Both trichilemmoma .D. Left trichilemmoma and right BCC
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@STEVENKOLKERMD
Steven
21 days
If a sentinel node is negative on a pT2a or greater melanoma, what is the likelihood of having positivity if an added 2 deeper (level) tissue sections and IHC were evaluated. I would venture it is greater than 5% depending on various factors. If so, why aren't we doing that?.
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@STEVENKOLKERMD
Steven
23 days
Anyone know of a lab that performs IHC for Monkey pox?.
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@STEVENKOLKERMD
Steven
23 days
Melanoma cytology
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@STEVENKOLKERMD
Steven
25 days
Is there such a thing as a pelvic lipoma. Urologist use this term when performing prostatectomies. That is, right and left pelvic lipomas. Sounds suspicious that they are just making up that clinical diagnosis to clear away fat to remove lymph nodes? Thoughts?.
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@STEVENKOLKERMD
Steven
26 days
Requirements which should be removed in the reporting of melanoma .1. Clark level .2. Tumor infiltrating lymphocytes.3. Regression .Radial/vertical growth phase (not a req) but some mention it. Present/absent solar elastosis (not a req), but some mention it. Agree/disagree?.
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@STEVENKOLKERMD
Steven
26 days
There are several different manifestation of psoriasis. Is psoriasis one dz or multiple diseases? That is, will there ever be a time when we combine the clinical with histology with molecular/proteinomic info. That is, you have psoriasis, type 1 or psoriasis type 2, etc.
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@STEVENKOLKERMD
Steven
28 days
Thoughts on this finding within the myometrium. What IHC stain/s would you order?
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@STEVENKOLKERMD
Steven
1 month
In benign pelvic fluid specimens that are cellular in which you can't tell if the cells are mesothelial cells or histiocytes, or a combination of the two, what is the most appropriate cytologic diagnosis?.
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@STEVENKOLKERMD
Steven
1 month
A few more pics.
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@STEVENKOLKERMD
Steven
1 month
Solitary lesion on the knee in an adult. Your diagnosis is: A) Hidradenocarcinoma .B) Primary cutaneous cribriform carcinoma/tumor .C) Primary cutaneous apocrine carcinoma .D) Metastatic carcinoma .E) Benign adnexal/sweat gland tumor
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@STEVENKOLKERMD
Steven
2 months
Just a pretty picture
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@STEVENKOLKERMD
Steven
2 months
Is there anyone other than Mayo clinic who does mass spectroscopy for amyloid? Commercial testing.
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@STEVENKOLKERMD
Steven
2 months
A blob of dystrophic calcification within a nevus. If Nanta can do it with bone, I think I do it with this calcification. I will call it Nevus of Kolker
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