Talk:Small cell carcinoma of the lung
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Left Supraclavicular Lymph Node, Biopsy: - SMALL CELL CARCINOMA, see comment: Comment: The tumour cells stain as follows: POSITIVE: synaptophysin, CD56, CK7. NEGATIVE: TTF-1, p63, CK5/6, CK20. Small cell carcinoma of the lung that is NEGATIVE for TTF-1 exists but is uncommon. The possibility of a non-lung primary should be considered within the clinical context. The case was partially reviewed internally.
Keratin negative SmCC?
Terada thinks it exists: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3282443/
Some other considerations - as per Borcz: https://handouts.uscap.org/AN2017/2017_CM07_Borcz_0201.pdf