<prompt> All of the following are classified as Small fiber neuropathies except:Vitamin B 12 deficiencyHIV InducedHansens diseaseAmyloidosis  <response>: Answer is A Vitamin B12 deficiency: Vitamin B12 deficiency associated neuropathy is primarily a Large Fiber neuropathy arising from dorsal column involvement. Lepromatous Leprosy Hansens Disease, HIV associated neuropathy and Amyloidosis associated neuropathy are all classified as Small-Fiber neuropathies. Classification of Neuropathy by Fiber Tyepe Motor Autonomic Guillain-Barre syndrome; relapsing Heritable motor-sensory Acute pandysautonomic neuropathy, botulism, porphyria, GBS, vacore, amiodarone, vincristine neuropathies Chronic: Acute intermittent porphyria Amyloid, Diabetes, Sjogrens, HSAN I Diphtheritic neuropathy and Ill Riley-Day, Chagas, Lead neuropathy Paraneoplastic. Brachial neuritis Note: GBS, Guillain-Barre syndrome; Diabetic lumbosacralplexus neuropathy diabetic amyotrophy HSAN, hereditary sensory and autonomic neuropathy. Small fiber Painful neuropathies; dissociated sensory loss Large fiber Ataxic-Neuropathies Mixed small large fiber Global sensory loss Hereditary sensory neuropathies early Sjogrens syndrome Carcinomatous sensory Lepromatous leprosy Vitamin B12 neuropathy neuropathy Diabetic includes glucose intolerance from dorsal column Hereditary sensory neuropathies small-fiber neuropathy involvement recessive and dominant Amyloidosis Cisplatin neuropathy Diabetic sensory neuropathy Analphalipoproteinemia Tangier disease Pyridoxine toxicity Vacor intoxication Fabrys disease pain predominates Dysautonomia Riley-Day syndrome Friedreichs ataxia Xanthomatous neuropathy of primary biliary cirrhosis I-11V and antiretroviral therapy neuropathy tabes dorsalis 