在一例成年女尸上,见其右侧无梨状肌,查阅国内“臀部肌变异”和“坐骨神经与梨状肌关系”方面的文献,尚未见这种变异记载。梨状肌缺如后,影响出坐骨大孔结构的辨认,现报道如下,供手术遇此情况时参考:由于无梨状肌,正常情况下,出入梨状肌上、下孔的结构排列亦发生变化。正常出入梨状肌上、下孔的结构,在本例中,约在相当于正常梨状肌上孔的部位穿出至臀部(结构穿 In an adult female corpse, see the right no piriformis, access to the domestic “hip muscle mutation” and “the relationship between the sciatic nerve and piriformis,” the literature has not yet seen such variability records. After the lack of piriformis, affecting the identification of macrostructure of the ischium, are reported below, for the case of surgery in this case reference: due to no piriformis, under normal circumstances, access to piriformis, the structure of the hole arrangement Change. Normal access to the structure of the superior and inferior piriformis, in this case, about the equivalent of normal piriformis holes to the hip piercing (structural wear