He smokes 20 cigarettes a day and has a moderate alcohol intake. Examination reveals a firm 2cm mass deep to the skin and sternomastoid muscle in the left upper neck with no other findings on neck ...

The jugular veins drain blood from the head. There are internal and external branches. The internal jugular vein lies deep in the root of the neck, medial to the sternomastoid muscle (Fig 1). It is ...