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臀下动脉是臀部的重要血管,出盆腔部位及分布较恒定。作者在解剖1例老年男性尸体发现其右侧臀下动脉缺如,臀上动脉出梨状肌上孔后,发出分支下行,替代臀下动脉[1,2]。现报道如下。此例标本右侧臀区梨状肌下孔未见臀下动脉穿出(图1)。同侧臀上动脉粗大,穿梨状肌上孔出盆腔,直径约4.5mm。臀上动脉出梨状肌上孔后行向下外侧,约4.7 cm后分为深、浅2支,深支营养臀中肌、臀小肌;浅支营养臀下部及股后上部结构。右侧臀上动脉浅支(外径3.3 mm)出梨状肌上孔后,斜向后外侧下行,距出孔4.5 cm处发出内、外侧2分支,内侧支(外
The inferior gluteal artery is an important blood vessel in the buttocks, with a more constant distribution of the pelvic cavity. The author dissected an elderly male body was found in the right inferior gluteal artery absent, superior gluteal artery piriformis hole, issued a branch down, instead of the inferior gluteal artery [1,2]. Report as follows now. In this case, there was no inferior gluteal artery penetrating the inferior gluteal region of the hip on the right side of the specimen (Figure 1). Ipsilateral buttocks artery thick, perforated piriformi hole out of the pelvis, diameter of about 4.5mm. After the superior gluteal artery out of the hole on the piriformis downward, about 4.7 cm into deep and shallow 2, deep support nutrition gluteal muscle, gluteus muscle; superficial nutrition hip and posterior superior femoral structure. The right superior gluteal artery superficial (3.3 mm in diameter) out of the piriformis on the hole, the oblique lateral posterolateral, 4.5 cm away from the hole issued medial and lateral 2 branches, the medial branch