Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

  • Listen to MedLink on the go with Audio versions of each article.

Low-magnification image of a Bacillus anthracis colony

Under very low magnification (5x), this photograph shows a close view of a Petri dish culture plate, upon which colonies of Bacillus anthracis bacteria had been cultivated. This view shows a single colony was featured, which exhibited a classic "medusa-head" or "judge's wig" morphology, a term given to colonies whose edges resemble a tangled mass of curly hair. (Photomicrograph taken in 1966 by Dr. Alan Lawrence Brodsky (1941-2016). Courtesy of Centers for Disease Control and Prevention Public Health Image Library, image 20498.)

Related Article

Associated Disorders

  • Cutaneous anthrax
  • Gastrointestinal anthrax
  • Inhalational anthrax
  • Ragpicker disease
  • Woolsorter disease