PPT5 Actinomycetes (Nocardia spp.)

Which is one of the BRANCHING GPB?

Nocardia

What is the gram stain morphology of Nocardia spp.

GRAM POSITIVE beaded filamentous rods WITH BRANCHING

Which gram positive organism is WEAKLY ACID FAST

Nocardia spp.

Pulmonary Nocardia infections occur from inhalation of?

DUST OR SOIL

Cutaneous Nocardia infections occur from?

INOCULATION from minor traumas

Which 2 Nocardia spp. are associated with PULMONARY infections?

N. cyriacigeorgica

N. farcinica

Confluent broncopneumonia is associated with which Nocardia infection?

Pulmonary infections

What do pulmonary Nocardia infections advance to?

NECROSIS

Nocardia brasilinsis typically affects which extremeties?

CUTANEOUS nocardia

HAND AND FEET

What are the initial local subcutaneous abscesses of N. brasiliensis called?

Actinomycotic mycetomas

What is seen in WET MOUNTS of Nocardia spp.?

BRANCHING and granules

What is seen in gram staining microscopy of Nocardia spp.

GP, BRANCHING FILAMENTS

Remember its also WEAKLY ACID FAST

Which organism is associated with BREADCRUMB appearance on cultures?

Nocardia spp.