Acute Hepatic Porphyria

**Semantic type:** Disease or Syndrome

**Definition:** A family of rare genetic disorders characterized by episodes of severe, potentially life-threatening abdominal pain and neuropsychiatric symptoms due to abnormal heme production in the liver.

**Synonyms:** - ALAD Deficiency - Delta-Aminolevulinate Dehydratase Deficiency - Porphobilinogen Synthase Deficiency