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Histological analysis of pharyngeal angiosarcoma with haematoxylin and eosin staining. The presence of abnormal vascular spaces, atypical lining cells and abnormal mitotic figures confirm angiosarcoma: diffuse growth of abnormal vascular spaces (A, 40x magnification); angiosarcoma formation of vascular channels with abnormal lining cells (B, 200x magnification); and solid growth pattern of high grade angiosarcoma (C, 400x magnification).
