Saving a Life by Recognizing the Rash: Niacin (Vitamin B3) Deficiency in Hartnup Disease With a Clinical Debut in Adulthood
Tryptophan deficiency can lead to a critical shortness of niacin (vitamin B3), causing photosensitive dermatitis and Picnic Basket a range of neurologic symptoms.The most common cause is severe protein malnutrition.However, in the case we present here, it is caused by a rare genetic disorder (Hartnup disease).A previously healthy 26-year-old woman