[Porphyria variegata. Apropos of a case]

A patient hospitalized because of somatic disturbances without any sign of detectable cerebral organicity and because of secondary anxiety disorder and major depression presents different clinical pictures with a neurological aspect. All this pictures, that evoke the diagnostic of hysteria conversion in particular, are complicated by a tetraplegia with emission of red urine that enable us to think of a diagnostic of hepatic-porphyria (variegata). Hereditary metabolic diseases, which categories of bioclinic symptoms (that enable us to evoke the diagnostic and to prevent the complications that are breeded by the prescription of forbidden drugs for ill subject) are reminded.