A 15-year-old girl with restrictive eating habits presents with sore throat, angular cheilitis, and a greasy scaling rash over the nasolabial folds. Vital signs show BP 98/62, HR 102, RR 18, Temp 37.2°C, SpO2 98%. Physical examination reveals corneal vascularization and glossitis. Serum albumin is 3.1 g/dL. She denies abdominal pain. Which vitamin deficiency best explains this clinical presentation?

  1. A)Vitamin B2GABARITO
  2. B)Vitamin B7
  3. C)Vitamin B3
  4. D)Vitamin B1
  5. E)Vitamin C

Explicação

Riboflavin deficiency causes cheilosis, stomatitis, glossitis, and corneal vascularization. Riboflavin is a precursor of FAD and FMN, which serve as redox cofactors in many oxidation reduction reactions. The mucocutaneous findings are the classic Step 1 patter... Ver explicação completa e trilha adaptativa →

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