Diagnosis
Central black necrosis with red, tender surrounding skin (PubMed). It is due to infection lodging in the capillaries and causing infection, thrombosis, and infarction.
Epidemiologic Risks
Usually neutropenia.
Microbiology
Pseudomonas leads the list, but other bacteria, yeasts, and molds can cause it.
Empiric Therapy
It depends on the organism.
Pearls
If you see it, biopsy for culture and gram stain. Right away.
Last Update: 06/25/18.