Topics

Topic

design image
Superficial temporal vein

The superficial temporal vein is a prominent vessel of the scalp, primarily responsible for draining blood from the lateral aspect of the forehead and scalp into the retromandibular vein. It is an essential vascular structure in both clinical anatomy and neuroimaging, often visualized during head and neck imaging studies. Understanding its course, synonyms, and MRI characteristics is crucial for differentiating vascular structures from pathology.

Synonyms:

  • Vena temporalis superficialis (Latin)

  • Temporal superficial vein

Anatomical Description:

  • Drains blood from the scalp above the auricle (ear) and forehead.

  • Courses upward from the region anterior to the ear, crossing the zygomatic arch.

  • Joins with the middle temporal vein and eventually merges with the maxillary vein to form the retromandibular vein.

  • Accompanied by the superficial temporal artery and auriculotemporal nerve.

MRI Appearance:

1. Proton Density (PD):

  • Appears as a well-defined, serpiginous, low-to-intermediate signal tubular structure.

  • Flow void phenomenon typically present, showing low signal due to rapid blood flow.

  • Vessel wall usually not distinctly visualized unless thrombosed or abnormal.

2. Short Tau Inversion Recovery (STIR):

  • The vein appears as a dark (hypointense) tubular structure due to flow void.

  • Perivascular fat and scalp tissues are suppressed, enhancing the contrast of the vessel.

  • No enhancement unless there is perivascular edema or pathology.

3. T1-Weighted Imaging:

  • Normal patent vein shows low signal intensity ("flow void").

  • Thrombosed or occluded veins may appear as isointense or hyperintense, depending on the stage of thrombosis.

  • Vessel wall generally not visible unless pathological.

MRI images

superficial temporal vein MRI image