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. 2019 Jun 3;92(1099):20190159. doi: 10.1259/bjr.20190159

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© 2019 The Authors. Published by the British Institute of Radiology

This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 Unported License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.

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Figure 3. — Figure showing two cases of ADCA (A, B), and two of SCCA (C, D). All cases were assigned high probability of respective histologies by the RF-sem model (inset). Among other semantic features, these tumours displayed features well known for ADCA, i.e. ground-glass component (arrow in A) and air bronchogram (arrow in B), and for SCCA, i.e. spiculation (arrow in C) and cavitation (arrow in D). Since spiculation was not strongly correlated with SCCA histopathology, the RF-sem model used absence of ADCA-specific features in C, although the overall confidence for SCCA (probability = 75%) was relatively lower. ADCA,adenocarcinoma; SCCA, squamous cell carcinoma.