What if it isn’t one diagnosis or the other — but both?
This exceptional case reports coexisting argininosuccinic aciduria + citrin deficiency.
Two defects. One altered biochemical picture.

What if it isn’t one diagnosis or the other — but both?
This exceptional case reports coexisting argininosuccinic aciduria + citrin deficiency.
Two defects. One altered biochemical picture.
What happens to the developing brain in asparagine synthetase deficiency?
The first neuropathological characterisation of ASNSD reveals disrupted neuronal migration, abnormal cortical lamination and cortical thinning.
🧠 New in #JIMDReports
One rare diagnosis doesn’t necessarily explain everything.
A new #JIMDReports case describes MPS I diagnosed in a patient with Wolf–Hirschhorn syndrome, a striking example of diagnostic overshadowing in rare disease.