Schwannoma of the tongue—A common tumour in a rare location: A case report Ines Abreu, Diogo Roriz, Pedro Rodrigues, Ângela Moreira, Cristina Marques,

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Schwannoma of the tongue—A common tumour in a rare location: A case report Ines Abreu, Diogo Roriz, Pedro Rodrigues, Ângela Moreira, Cristina Marques, Filipe Caseiro Alves European Journal of Radiology Open Volume 4, Pages 1-3 (January 2017) DOI: 10.1016/j.ejro.2017.01.002 Copyright © 2017 The Author(s) Terms and Conditions

Fig. 1 MRI of the tongue revealed the presence of a well-circumscribed nodule on the right anterior tongue, homogeneously isointense to muscle on T1WI (A) and homogeneously hyperintense on T2WI (B), showing hypervascularity on contrast dynamic study, with homogeneous contract enhancement (D). A − T1 WI sagittal (TE: 13; TR: 590); B − T2 WI coronal (TE: 63; TR: 3340); T1 VIBE before (C) and after (D) gadolinium injection (TE: 12; TR: 624). European Journal of Radiology Open 2017 4, 1-3DOI: (10.1016/j.ejro.2017.01.002) Copyright © 2017 The Author(s) Terms and Conditions

Fig. 2 Histological pictures coloured with H&E (A, B and C) and immunohistochemical staining for S-100 protein (D). A − At low power (H&E x 40) the capsule can be seen (arrow) as well as the Antony A (more cellular) and Antony B (paucicellular and more myxoid) components. B − At low power (H&E x 40) the ulcerated margin is evident, with haemorrhage and necrosis. C − At high power (H&E x 100) the palisading nuclei and Verocay bodies are evident, as well as the Antony A and Antony B components. The hypervascularity of the lesion can be noted, as many vessels are seen. D − Immunohistochemical staining revealed diffuse and strong positivity for S-100 protein. European Journal of Radiology Open 2017 4, 1-3DOI: (10.1016/j.ejro.2017.01.002) Copyright © 2017 The Author(s) Terms and Conditions