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  • Presentation

Nutritional Deficiency Dermatoses

Description

The presentation discusses nutritional deficiency dermatoses, emphasizing the role of dermatologists in recognizing skin manifestations of nutritional deficiencies caused by fad diets. Various clinical cases are presented to illustrate specific deficiencies, such as vitamin A, B3, C, and D, each associated with distinct skin rashes and systemic symptoms. For example, a case of rhinoderma linked to vitamin A deficiency showed hyperkeratotic papules, while another case of pelagra indicated a B3 deficiency with a photo-distributed rash. The discussion includes risk factors for each deficiency, diagnostic approaches like serum level checks, and treatment strategies including vitamin supplementation. The presentation also explores dietary habits, such as veganism, paleo, ketogenic, and raw diets, highlighting potential nutritional risks such as deficiencies in calcium, B vitamins, and omega-3 fatty acids. Overall, attendees are advised to consider nutritional deficiencies in their differential diagnoses and encourage patients to disclose their dietary practices, as multiple deficiencies may coexist and impact treatment outcomes.

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Conclusions

  • Nutritional deficiencies can present with specific dermatological symptoms that may be overlooked by healthcare providers.
  • Clinical signs such as night blindness and skin rashes can indicate vitamin A deficiency (phrynoderma), especially in patients with dietary restrictions.
  • Pellagra, a result of vitamin B3 deficiency, can manifest as photodistributed rashes and is commonly seen in those with poor dietary habits or alcohol abuse.
  • Vitamin C deficiency (scurvy) presents with symptoms like bleeding gums and perifollicular purpura, often related to inadequate dietary intake.
  • Vitamin D deficiency is prevalent and can cause fatigue and hair thinning, necessitating dietary assessment and supplementation.
  • Zinc deficiency may lead to psoriasiform dermatitis, particularly in patients with malabsorption issues such as Crohn's disease.
  • Common oral and dermatological findings, such as glossitis and angular cheilitis, are linked to deficiencies in vitamins B complex, iron, and zinc.
  • Different diets, like vegan and ketogenic, carry specific risks for nutritional deficiencies and should be monitored carefully.
  • It is important for dermatologists to inquire about patients' dietary practices to identify potential nutritional deficiencies as underlying causes of skin conditions.
  • Nutritional deficiencies may coexist, requiring comprehensive assessment and treatment strategies to address multiple deficiencies for effective symptom resolution.
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