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Immunohistochemical analysis of the HMGA2 protein expression in lung squamous cell carcinoma.
A. Grade 2, moderately-differentiated squamous cell carcinoma with weak staining (score <3, magnification × 100).
B. Grade 2, moderately-differentiated squamous cell carcinoma with moderate staining (score 3-6, magnification × 64).
C. Grade 3, poorly-differentiated SCC with strong staining (score >6, magnification × 64)
