<prompt> All can cause peripheral neuropathy, Except:UraemiaPoiphyriaLead toxicityHypothyroidism  <response>: Ans. is d hypothyroidism Ref.: Harrison, 16e, p 2503, 2504 15e, p 2500; Chandrasoma Taylor, 3e, p 949.All the given 4 option can cause peripheral neuropathy but hypothyroidism is the rarest cause amongst them so it could be your answer if the same options are repeated.CAUSES OF PERIPHERAL NEUROPATHYMetabolic causesDiabetesPorphyriaUremiaAmyloidosisDeficiency of vitamins B1 B6 orBI2Hypothyroidism InfectionsHIVLeprosyDiptheriaG.B. SyndromeToxicDrag Isoniazid, Nitrofurantoin.Alcoholic polyneuropathyHeavy metals Lead, Arsenic Mercury, GoldInsecticides, SolventsIschemic neuropathiesDiabetesGiant cell arteritisSLEHereditary neuropathiesRef sums diseaseCharcot-Marie tooth diseaseCarcinomatous neuropathies noncompressive nonmetastatic 