Niacin Deificiency

Etiology

  • Nutritional deficiency

Symptoms

  • Diarrhea
  • Chronic, progressive, symmetric, erythematous, puritic skin eruption
  • Often V-area of neck
  • Irritability, anxiety, delusions, apathy
  • Peripheral sensory and motor neuropathy

Physical Exam Findings

  • Erythematous, puritic skin eruption; can resemble sunburn
  • Skin often dry & rough appearing
  • Often affects V-area of neck
  • Symmetric, painful peripheral sensory and motor neuropathy, arms and legs