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Sample A1: Low‐grade adenosquamous carcinoma. Displayed somatic mutation in PIK3CA: H1047L (H&E).
A. Whole slide scan – pre‐dissection.
B. Whole slide scan – post‐dissection.
C. Adenosquamous proliferation of LGASC (scan 28×).
D. Perineural invasion (scan 40×).
