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Five adult patients with vascular malformations in the parotid region are described. Three of these patients had lumps in the parotid gland clinically indistinguishable from parotid tumours: one had a diffuse swelling of the check, and the fifth had a pulsatile tumour in the deep lobe of the gland. Two patients had a characteristic sign-the lump in the cheek became more obvious, both visually and on palpation, when the masseter muscle was tensed. In 3 of the patients calcified opacities, resembling phleboliths, were demonstrated on plain X-ray examination. This is only the third report of vascular malformations of the parotid region in the British literature; no other report of a pulsating tumour within the parotid gland has been found in a search of the world literature.
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