Prenatal analyses were performed in the pregnancy of the mother of a patient with β‐mannosidase deficiency. Partial deficiency of β‐mannosidase activity in the chorionic villi indicated a heterozygous fetus and this first‐trimester diagnosis was subsequently confirmed by amniocentesis. Copyright

doi.org/10.1002/pd.1970121011, hdl.handle.net/1765/55168
Prenatal Diagnosis
Department of Clinical Genetics

Kleijer, W., Geilen, M., van Diggelen, O., Wevers, R., & Los, F. J. (1992). Prenatal analyses in a pregnancy at risk for β-mannosidosis. Prenatal Diagnosis, 12(10), 841–843. doi:10.1002/pd.1970121011