Gram – Wound- breast – gram positive bacilli (Mycobacterium chelonae) – Shipped February 2015
A simulated breast wound smear collected from a 34 year old female patient with breast implants was sent to category A, B, C, and C1 la-boratories for Gram staining.
Participants were expected to report the presence of gram positive bacilli.
MAIN EDUCATIONAL POINTS from G144
- The presence of non-tuberculous mycobacteria (NTM) in a specimen should be suspected if beaded gram positive bacilli are seen in Gram-stained smears (see critique for M144-5). Addition of Ziehl-Neelsen or Kinyoun smears may be useful.