Figure 1: Image characters (a) Fat-saturated coronal T2-weighted MR image shows bilateral agenesis of the olfactory bulbs and tracts (arrows). (b) Coronal T2-weighted MR image shows normal olfactory tracts and bulbs (arrows). (c) Sagittal postcontrast T1-weighted image shows a flat pituitary but no lesion (4 mm height, arrow). (d) Direct sequencing of the SRD5A2 gene shows c. 680G> A (p.R227Q) substitution at exon 4 in the patient (top arrow) and the sequence of a normal control subject (bottom arrow). (e) X-ray picture of the patient's left wrist shows a 16-year-old bone age. (f) Sagittal T2-weighted MR image shows a Mullerian duct cyst (the upper arrow) and a dysplastic prostate (the lower arrow). (g) T2-weighted axial MR image shows the patient's bilateral agenesis of seminal vesicles. (h) Axial T2-weighted MR image shows normal seminal vesicles. MR: magnetic resonance.