What is persistent stapedial artery?

The persistent stapedial artery is a rare congenital vascular anomaly that may present as a pulsatile middle ear mass or that may appear as an incidental finding. Five cases of persistent stapedial artery are presented.

What is a stapedial artery?

The stapedial artery is an embryonic artery which disappears during the tenth week in utero, in human species. During its short life, this artery shapes the stapes and transforms the middle meningeal artery from the internal carotid artery to a branch of the external carotid system.

Where is stapedial artery?

inner ear
In human anatomy, the stapedial branch of posterior auricular artery, or stapedial artery for short, is a small artery supplying the stapedius muscle in the inner ear.

What does Caroticotympanic artery supply?

Caroticotympanic artery (C): it originates from the petrous part (C2) and travels through the tympanic cavity via the foramen within the carotid canal. Inferior hypophyseal artery (I): also coming from the cavernous segment (C4), this artery supplies the neurohypophysis, the posterior part of the pituitary gland.

What accompanies superior thyroid artery?

The superior laryngeal artery accompanies the internal laryngeal branch of the superior laryngeal nerve, beneath the thyrohyoid muscle. This artery branches from the superior thyroid artery near its bifurcation from the external carotid artery.

What nerve travels with the superior thyroid artery?

The external laryngeal nerve runs in close proximity to the origin of the superior thyroid artery in relation to the thyroid gland. The superior thyroid artery is clinically important in head and neck surgeries.

What is Stapedial myoclonus?

Background: Stapedial myoclonus is an uncommon condition involving the rhythmic contraction of the stapedial tendon that may result in a host of symptoms, including tinnitus . There is a dearth of robust diagnostic modalities to diagnose stapedial myoclonus, and most patients are treated without definitive diagnosis.

Is the cavernous internal carotid artery intracranial?

The internal carotid arteries (ICA) and their major branches are referred to as internal carotid system. Anatomically the ICA is divided into extracranial and intracranial parts. The intracranial part is further subdivided into petrous, cavernous, and cerebral parts [1,2].

How can you tell if you have superior thyroid?

Location. The superior thyroid artery branches off of the external carotid artery just below the chin. From there, it runs upward inside of a structure called the carotid triangle. Then it turns downward and runs beneath the muscles along the front of the neck.

What nerve runs with superior laryngeal artery?

This artery courses to the thyroid gland. The superior laryngeal artery branches from the superior thyroid artery. This artery pierces the thyrohyoid membrane with the internal laryngeal nerve and helps supply the larynx.

What is the persistent stapedial artery?

Summary: The persistent stapedial artery is a rare congenital vascular anomaly that may present as a pulsatile middle ear mass or that may appear as an incidental finding. Five cases of persistent stapedial artery are presented.

Which radiographic findings are characteristic of persistent stapedial artery (PSA)?

The presence of a persistent stapedial artery (PSA) may be recognized with plain radiography, CT, or angiography. Diagnostic imaging studies in five patients with PSA are reviewed. The CT findings include the absence of the ipsilateral foramen spinosum and a soft-tissue prominence in the region of the proximal tympanic segment of the facial nerve.

Is the stapedial artery present in normal fetal development?

The stapedial artery is transiently present in normal fetal development, connecting the branches of the future external carotid artery (ECA) to the internal carotid artery (ICA). Postembryonic persistence of the stapedial artery is rare.

What is the hyoid and proximal stapedial artery?

The hyoid and proximal stapedial arteries are now named the “caroticotympanic” artery. Although everpresent, it is too small to be angiographically resolved. The distal part, related to the petrosal nerve is the superior tympanic branch of the middle meningeal artery.