Right venous vascular malformation, imaging post sclerotherapy. There is a well-defined, lobular, right parotid lesion with phleboliths, adjacent to the retromandibular vein, which measures up to approximately 25 mm. Although not significantly changed in size, the lesion demonstrates less enhancement. The other salivary glands are unremarkable. There is no significant lymphadenopathy in the neck. The orbits are unremarkable. The osseous structures are intact, aside from multilevel degenerative cervical spondylosis. There is a small right maxillary sinus retention cyst. There is apparent restricted diffusion in the left midbrain and pons.
1. Although the right parotid vascular malformation has not significantly changed in size, the lesion demonstrates less enhancement, which may be attributable to treatment effects.2. Apparent restricted diffusion in the left midbrain and pons may represent a recent infarct, versus artifact. Dedicated brain imaging may be useful for further clarification.