Table 6.

Cauldwell classification.

Type	Pattern	Frequency
1	Two left independent of the thoracic aorta and one right originated from intercostobrachial trunk	40.6%
2	One left independent of the thoracic aorta and one right originated from intercostobrachial trunk	21%
3	Two left independent of the thoracic aorta and two right (one independent of the thoracic aorta and one originated from intercostobrachial trunk)	20%
4	One left independent of the thoracic aorta and two right (one independent of the thoracic aorta and one originated from intercostobrachial trunk)	9.7%