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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Am J Surg Pathol. 2015 Sep;39(9):1170–1180. doi: 10.1097/PAS.0000000000000439

Figure 4. Squamoid morphology of lung adenocarcinoma (original magnification, x100: A–C).

Figure 4

(A) Cytoplasmic keratinization-like feature (eosinophilic cytoplasm with pyknotic nuclei) identified near necrotic area (bottom right). (B) Squamoid tumor cells that exhibited abundant eosinophilic cytoplasm. (C) Squamoid tumor cells the exhibited abundant eosinophilic cytoplasm with sharp cell borders and intercellular bridge-like features. (D) Squamoid adenocarcinoma positive for TTF-1 (8G7G3/1).