intermittent acute porphyria

n.
  1. Porphyria caused by overproduction of delta-aminolevulinic acid, with greatly increased urinary excretion of it and of porphobilinogen, due to a deficiency of porphobilinogen deaminase. It is characterized by intermittent acute attacks of hypertension, abdominal colic, psychosis, and neuropathy.acute intermittent porphyria
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.