Goitre contributing factor. In countries that use iodized salt, Hashimoto's thyroiditis is the most common cause. Goitre can also result from cyanide poisoning; this is particularly common in tropical countries where people eat the cyanide-rich cassava root as the staple food. Goitre is treated according to the cause. If the thyroid gland is producing an excess of thyroid hormones (T3 and T4), radioactive iodine is given to the patient to shrink the gland. If goitre is caused by iodine deficiency, small doses of iodide in the form of Lugol's iodine or KI solution are given. If the goitre is associated with
Aminolevulinic acid dehydratase deficiency porphyria Aminolevulinic acid dehydratase deficiency porphyria Aminolevulinic acid dehydratase deficiency porphyria (also known as "Doss porphyria", and "plumboporphyria") is a neuropsychiatric condition, disease can present during early childhood (as well as in adulthood) with acute neurologic symptoms that resemble those encountered in acute intermittent porphyria. The condition is extremely rare, with fewer than 10 cases ever reported. ALA dehydratase deficiency is a rare cause of hepatic porphyria. It is an autosomal recessive disorder that results from inappropriately low levels of the enzyme ALA dehydratase (ALAD, also called porphobilinogen synthase), which is required for normal heme synthesis. ALA dehydratase deficiency is inherited