[Clinical symptomatology in aneurysm of the ampulla of Galen. Results of a national survey].

Results of a national survey of clinical symptomatology revelatrice of an aneurysm of Galen's ampulla are analyzed and compared with documented data. Three large groups can be distinguished as a function of age at diagnosis: the neonatal period: cardiac insufficiency; childhood: macrocrania; adolescence and adult life: various clinical symptoms and signs but fortuitous discovery not exceptional.