The variant suprarenal arterial supply in Thais.

The principal aims of this study were to investigate the origins and the anatomical types of arterial supply to the suprarenal gland. The glands received blood from 3 arteries: the superior suprarenal, the middle suprarenal, and the inferior suprarenal arteries. Such origins were observed in that the superior suprarenal arteries arose almost exclusively from the inferior phrenic artery (97%) except 1 gland (1%) whose arterial supply was directly from a branch of the celiac artery and 2 glands (2%) from the renal artery. The middle suprarenal arteries originated from either the aorta (58 glands, 57%) or a branch of the renal artery (44 glands, 43%) Almost the inferior suprarenal arteries came from the proximal part of the renal artery (86 out of the 102 glands or 84%), the remaining of the 16 glands or 16% were directly supplied from the aorta. The arterial supply to the suprarenal gland may be classified into three types. Type I, having tripartite origins (41% received blood from the inferior phrenic artery (or the branch of celiac artery), the aorta, and the renal artery. Type II, having bipartite origins (57%), was a major type receiving blood form the inferior phrenic artery and directly from the aorta (or the renal artery). Type III, rare type (2%), received blood from only one origin, the renal artery.