Arteriovenous malformations (AVMs) develop due to a failure of differentiation in the early stages of embryogenesis. AVMs are characterised by an abnormal connection between feeding arteries and draining veins by an intervening of pathologic blood vessels network (nidus). The bypassing of the capillary system results in high-flow arteriovenous blood shunting. AVM of the parotid gland (PG) is an extremely rare condition with very few reported cases in the literature. Treatment options include embolisation, laser, cryotherapy, corticosteroids and the surgical resection of the PG. Embolisation using a wide variety of liquid embolic agents (LEAs) plays a key role in the treatment of PG AVM. The novel use of an iodinated copolymerbased precipitating hydrophobic injectable liquid (PHIL) for trans-arterial embolisation of PG AVM is safe, feasible and effective. 

A 46-year-old male was hospitalized in Pauls Stradins Clinical University Hospital (Riga, Latvia) with complaints about a pulsatile right cheek mass, tinnitus in the right ear and the pains that irradiate to the oral cavity, but that did not relate to meals. A swelling in front and below the right ear occurred spontaneously three years ago and gradually progressed in size. On physical examination, the patient was found to have a soft, tender, non-fluctuant and well-defined mass in the right parotid region measuring around 3 × 4 cm. A palpable thrill over the right parotid gland and wellaudible bruit, even from the short distance over the swelling, was noticed.

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