[Diagnostic and etiologic problems of hydranencephaly (author's transl)]

A report of hydranencephaly is made, featuring normal cephalic perimeter and where diagnosis was a pathological finding. There were no clinical suspiscions and fetal distress along with post-partum anoxia were thought to be the chief causes of the disease. A revision of clinical, diagnostic and etiological factors of this particular entity is made. It is of concern to aim this report in the direction of considering phosphorous-organic products to have a teratogenic action and therefore to be an interesting etiological aspect in the production of hydranencephaly.