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. 2022 Jan 7;11:740676. doi: 10.3389/fonc.2021.740676

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Copyright © 2022 Recine, De Vita, Fausti, Pieri, Bongiovanni, Franchini, Casadei, Falasconi, Oboldi, Matteucci, Pallotti, Mercatali, Riva, Gurrieri, Vanni, Liverani, Miserocchi, Spadazzi, Cocchi and Ibrahim

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Histological features of NTRK rearranged spindle cell neoplasm. (A) Hematoxylin & Eosin (H&E) staining of the surgically resected recurrence tumor of the thoracic wall. (B) H&E staining of the surgically resected liver metastasis. (C) p53 positivity by immunohistochemistry (IHC) in the surgically resected liver metastasis. (D) S100 positivity by IHC in the surgically resected liver metastasis. (E) CD34 positivity by IHC in the surgically resected liver metastasis. (F) Ki-67 by IHC in the surgically resected liver metastasis (1% positivity).