Dying back neuropathy is seen in all except a arsenic

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Dying back neuropathy is seen in all except - a) Arsenic neuropathy (AIPGMEE08) b) Gullain Barre syndrome c) Diabetic neuropathy d) Vasculitic neuropathy 214
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Types of peripheral nerve iniury Wallerian degeneration:- Axons degenerates distal to a focal lesion that interrupts the continuity of the axon. It is a dying forward phenomenon. This reaction often occurs in focal mononeuropathies that result from trauma or nerve infarction. 215
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Axonal degeneration:- It is sometimes referred to as the “ dying back phenomenon ”. It results in axonal degeneration at the most distal extent of the axon. As the disorder progresses, the axons typically degenerate in a distal to proximal gradient. Axonal degeneration is the most common type of pathological reaction in generalized polyneuropathies and it is often attributed to “Metabolic etiology”. 216
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Segmental demyelination:- It refers to focal degeneration of the myelin sheath with sparing of the axon. This reaction can be seen in focal mononeuropathies but also in generalized sensorimotor or predominantly motor neuropathies. Myelin sheath is essential for conduction, so demyelination leads to loss of conduction. Acquired segmental demyelinating polyneuropathies are often immune mediated or inflammatory in origin. 217
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Dying back neuropathy is seen in all except - a) Arsenic neuropathy (AIPGMEE08) b) Gullain Barre syndrome c) Diabetic neuropathy d) Vasculitic neuropathy B Guillain Barre syndrome is an example of segmental demyelination. 219
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In small fiber neuropathy presents as-(PGI June 08) a) Burning pain b) Tingling & numbness c) Foot drop d) Burning sensation e) Cramp 220
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221
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In small fiber neuropathy presents as-(PGI June 08) a) Burning pain b) Tingling & numbness c) Foot drop d) Burning sensation e) Cramp A , B 223
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All of the following are classified as ‘Small fiber’ neuropathies except - (AI 12) a) Vitamin B 12 deficiency b) HIV Induced c) Hansen’s disease d) Amyloidosis A 224
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Inflammation of nerve is seen in (PGI- DEC03) a) Leprosy b) Diabetes c) Guillain Barre Syndrome d) Diphtheria 225
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Inflammatory neuropathy:- These diseases are characterized by inflammatory cell infiltrate in peripheral nerve roots , and in sensory and autonomic ganglia. In some cases infectious agent elicits the inflammatory response while in others immune mechanism may cause inflammation. 226
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Inflammation of nerve is seen in (PGI- DEC03) a) Leprosy b) Diabetes c) Guillain Barre Syndrome d) Diphtheria A,B,D 228
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All of the following are associated with Autonomic Neuropathies, except- (NBE DNB Pattern) a) Diabetes b) Amyloid c) Hyperthyroidism d)Botulinism 229
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Cardiovascular feature of autonomic neuropathy:- Resting heart rate (after 15 minutes of rest) of 100 beat/m or more i.e. (resting tachycardia).
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  • Winter '16
  • jean grey

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