Hypervitaminosis A

  • Etiology: overdose of Vitamin A
  • Imaging: cortical thickening most commonly involves ulna + metatarsals followed by clavicle and then tibia + fibula, premature fusion of epiphyses, takes weeks – months to resolve radiographically
  • DDX: Infantile cortical hyperostosis which involves mandible + clavicle + ulna

Cases of Hypervitaminosis A