The Authors present a very rare case of left anterior jugular vein cavernoma anterior jugular vein cavernoma in an over-seventy-year-old woman. The patient was visited already in a complicated status occurring as an increasing lateral neck mass. The case is so interesting for several reasons: for the peculiar lesion that belongs, in fact, to the uncommon group of the cavernous hemangiomas; for the exceptional localization on the anterior jugular vein; for the old age of the patient; last, but not least, for the unusual presentation of the forthcoming rupture. A speed healing without complications has been achieved thanks to the immediate diagnosis (it is important to suspect the lesion!), to the imaging techniques and to the surgical approach performed in emergency.