An unusual pattern of three major components of the cardiovascular system: multimodality imaging and review of the literature

Table 1 Angiographic types of isolated single coronary artery (modified Lipton classification)

	Code	Description
Ostial location	R	Right Sinus of Valsava
Ostial location	L	Left Sinus of Valsava
Anatomical distribution	I	The solitary dominant vessel follows the course of either a normal right or left coronary artery
	II	One coronary artery arises from the proximal part of the normally located another coronary artery
	III	LAD and LCx arise separately from a common trunk originating from the right sinus of Valsava
Course of the transverse trunk	A	Anterior to the great vessels
	B	Between the aorta and the pulmonary Arteries
	P	Posterior to the great vessels
	S	“Septal type” : A part of the route passes through the interventricular septum
	C	“Combined type” : Combination of diverse routes

ISSN: 1749-8090