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Pellagra, a niacin deficiency disease, can be deadly but is treatable. Early diagnosis based on skin, digestive, and neurological symptoms is crucial for recovery.

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Area of Science:

  • Nutritional Science
  • Dermatology
  • Neurology

Background:

  • Pellagra is a severe nutritional deficiency disease resulting from a lack of niacin (vitamin B3).
  • While rare in developed nations, pellagra persists in vulnerable populations globally.
  • Diagnosis typically relies on identifying characteristic dermatitis, diarrhea, and dementia.

Observation:

  • A case study details a woman presenting with skin hyperpigmentation and hyperkeratinization on sun-exposed areas.
  • The patient also exhibited watery diarrhea and progressive cognitive decline, including disorientation and disorganized speech.
  • Dietary history revealed exclusive consumption of cassava root meals.

Findings:

  • Niacin deficiency was confirmed as the cause of the patient's symptoms.
  • Alternative diagnoses were ruled out.
  • Treatment with nicotinamide (a form of niacin) led to a complete recovery.

Implications:

  • This case underscores the importance of considering pellagra in patients with compatible symptoms, especially those with poor dietary intake.
  • Prompt diagnosis and nicotinamide supplementation offer a highly effective and life-saving treatment.
  • Maintaining a high index of suspicion is vital for timely intervention in this potentially fatal condition.