41. It may be underdiagnosed, as it does not have the typical presentation associated with a porphyria . 42. The hepatic porphyrias are characterized by acute neurological attacks ( seizures, psychosis, extreme increased hair growth. 43. An incestuous relationship has also been suggested; Porphyria might be the speaker's mother or sister. 44. The results of biochemical testing for porphyrias are most informative when samples are collected during an acute attack. 45. The patient's underlying condition was probably acute intermittent porphyria , which can be provoked by medicines. 46. This acute mental illness ( perhaps due to porphyria ) made her incapable of handling state affairs after 1792. 47. Propofol appears to be safe for use in porphyria , and has not been known to trigger malignant hyperpyrexia. 48. Overall, the incidence of all porphyrias is estimated at 1 : 20, 000 in the United States. 49. Therefore, alcohol consumption may increase the production of uroporphyrinogen, exacerbating symptoms in individuals with porphyria cutanea tarda. 50. A clinically similar form of porphyria , known as X-Linked dominant protoporphyria, was identified in 2008.
