Hyperamino-aciduria in Lignac-Fanconi Disease, in Galactosaemia and in an Obscure Syndrome

The observation of various conditions with in- creased excretion of amino-acids in the urine has given rise to problems of differential diagnosis, many of which are still unsolved. This paper will com- pare and contrast three different diseases with increased amino-acid excretion. It is based on the description of the following cases; the first an example of Lignac-Fanconi disease, the second an infant suffering from galactosaemia, and the third a child with an obscure syndrome.