Abstract
To study the chromosomal content of spermatozoa selected by intracytoplasmic morphologically selected sperm injection (IMSI) in cases of macrocephalic sperm head syndrome. Case report. Obstetrics, gynecology, urology, and reproductive biology departments. Two infertile patients with large-headed spermatozoa. Fluorescence in situ hybridization on selected spermatozoa with normal-sized heads after IMSI selection. Percentages of polyploid, diploid, haploid aneuploid, and normal spermatozoa. Of the six spermatozoa that could be selected, all were haploid but aneuploid. Absence of normal haploid spermatozoa among high magnification-selected spermatozoa contraindicated IMSI for these two patients.
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