It is chronologically the first portion of the aorta to form, and appears as a dilation superior to the truncus arteriosus.

Because there is a risk of thromboembolic complications and spontaneous rupture, surgical repair is usually recommended early on after discovery.

For the successful management of TIF, treatment should be initiated immediately with special considerations kept in mind.

[12] Also, aberrant innominate artery crossing anterior to the trachea just below the thyroid isthmus was reported.

Anterior neck surgeries such as bronchoscopies and mediastinoscopies are common and safe procedure, since operating around the trachea, no major vessel is encountered in the surgical field.

However, when this type of abnormality is encountered, even minor trauma can lead to mass bleeding culminating in death.

Anomalous innominate artery originates later from the transverse arch and then crosses the trachea causing anterior tracheal compression.

[14] This article incorporates text in the public domain from page 548 of the 20th edition of Gray's Anatomy (1918)