Feb 19, 2022 · The colonies often have comma-shaped projections from the edge of the colonies, resulting in medusa-head colonies. The size of the colonies is comparatively smaller than that …

Occasionally the colonies may have fringed edges or put out curled protrusions (tailing). This is the so-called “Medusa head appearance” but is not encountered as frequently as textbooks …

Occasionally the colonies may have fringed edges or put out curled protrusions (tailing). This is the so-called “Medusa head appearance” but is not encountered as frequently as textbooks …

There are often comma shaped projections from the colony edge producing a “Medusa-head” colony. Colonies have a sticky consistency when manipulated with a loop. No gro wth on …

Bacillus anthracis colonies at small magnification, present at the edge of the colony and composed of long, interlacing chains of bacilli, resembling locks of matted hair and referred to …

Bacillus anthracis Gram stain: • Large Gram-positive rod (1-1.5 x 3-5μm) • Central to subterminal spores • Single, short chains, or long chains Colony morphology: • Grey, ground-glass …

Colonies are suspicious for Bacillus anthracis / Bacillus cereus, if they posses a so called "Medusa head". Curl-like projections from the colonie edge. In Greek mythology Medusa, …

Jun 9, 2020 · On physical exam, there is a 4-mm papule with a dusky-looking central vesicle and surrounding edema. There is also axillary lymphadenopathy. She is started on antibiotics.

Some are called "medusa-head" or "judge's wig" type colonies since the edge of the colony resembles a tangled mass of curly hair. In the absence of serum or bicarbonate, bacteria fail to …

Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online. Culture Characteristics: No hemolysis on SBA (NOTE: Bacillus cereus …