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Morphologic profile of histologic patterns in poor-quality frozen section slides and the corresponding frozen section control slides. Lepidic pattern (A, B), acinar pattern (C, D), papillary pattern (E, F), micropapillary pattern (G, H), and solid pattern (I, J) in frozen section and frozen section control slides, respectively. Hematoxylin and eosin stain; original magnification × 200.
