[Hepato-renal polycystosis, Marfan's syndrome and spina bifida occulta: a complex association. Description of a clinical case].

The simultaneous diagnosis of polycystic kidney, Marfan's syndrome and silent spina bifida in a young woman is described. The coexistence of the first two entities has recently been reported as not rare, but the pathogenetic mechanism is not clear. The prognostic importance and the frequency of these two clinical entities make complete assessment of patients with only one of the two malformations mandatory.