Spermatogenic failure-84 (SPGF84) is characterized by male infertility due to multiple morphologic abnormalities of the sperm flagella (MMAF), including irregular-caliber, bent, coiled, absent, or short tails, resulting in severely reduced motility. Some patients also have a reduced sperm count (Liu et al., 2021; Hu et al., 2023).
For a general phenotypic description and discussion of genetic heterogeneity of SPGF, see SPGF1 (258150). [from
OMIM]