Histological characteristics of <i>ALK</i>-rearranged tumors.

<p>A, cribriform formation; B, mucin-containing goblet cells; C, mucin-containing signet-ring cell; D, psammoma body; E, cholesterol cleft.</p

Multivariate analysis: Factors significantly associated with <i>ALK</i> rearrangement on logistic regression analysis.

<p>Multivariate analysis: Factors significantly associated with <i>ALK</i> rearrangement on logistic regression analysis.</p

Expression of epithelial mesenchymal transition markers in <i>ALK</i>-rearranged tumors.

<p>A, Loss of E-cadherin; B, Expression of vimentin.</p

Clinicopathological characteristics of patients based on driver mutation status.

<p>Abbreviations: TN: triple negative.</p

Relationship of <i>ALK</i>-rearranged tumors with the bronchiole.

<p>A, Tumor gland that resembles the adjacent segmental bronchial gland in morphology; B, Tumor cell infiltration of the adjacent bronchiolar epithelium.</p