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染色体倒位是染色体结构畸变之一。我院从１９８２年８月至１９９３年８月共检查染色体２２９０例，其中发现染色体倒位２８例，检出率为１２．２‰，臂内倒位４例检出率为１．７５‰，臂间倒位２４例检出率为１０．５‰。臂间倒位检出率高出臂内倒位６倍。我院检出倒位染色体涉及１、６、７、９、１１、１２、１７、１９号。臂内倒位有６、７、１２号。在臂间倒位中ｉｎｖ（９）有２１例，检出率为９．２‰，占臂间倒位的８７．５％。
Chromosome inversion is one of the chromosomal structural aberrations. Our hospital from August 1982 to August 1993 a total of 2290 cases of chromosomes were checked, of which 28 cases were found inversions of chromosomes, the detection rate was 12.2 ‰, 4 cases of arm inverted detection rate was 1.75 ‰, 24 cases of inverted inversion detection rate of 10.5 ‰. The detection rate of arm inversion is 6 times higher than that of arm inversion. Our hospital detected inverted chromosomes involving 1,6,7,9,11,12,17,19. Arm inverted 6,7,12. There were 21 inv (9) in the inversion between arms, the detection rate was 9.2 ‰, accounting for 87.5% of the inversion between the arms.