An 11-year-old boy got a temporary black henna tattoo while on vacation. After 3 days he developed an itching rash at the site of the tattoo, that spread to the rest of the body. This was most likely an allergic contact dermatitis and erythema exsudativum multiforme minor caused by the often high concentrations of the strong sensitizer para-phenylenediamine (PPD) in the henna.
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Clin Neuroradiol
January 2025
Department of Endocrinology, Diabetology, Metabolic Diseases and Clinical Chemistry (Internal Medicine 1), Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.
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Medical Technology Innovation Center, Juntendo University, 2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421, Japan. Electronic address:
This study was conducted at 112 government and Juntendo University hospitals in February 2021 for the primary series of SARS-CoV-2 vaccinations. We compared the timing of solicited adverse event (AE) onset and prevalence of unsolicited AEs for Pfizer, Moderna, and AstraZeneca vaccines in a nationwide, large-scale prospective cohort study. The Pfizer and Moderna mRNA vaccines were associated with a higher frequency of fever after the second dose than after the first dose.
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Department of Medical Microbiology, Usman Danfodiyo University Teaching Hospital, Sokoto, Nigeria.
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S.C. Reumatologia, ASL3 Genovese, Genoa, Italy.
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Department of Plastic Surgery, Odense University Hospital, Denmark.
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