Hand Case 14 Background
A felon is an infection of the distal finger pulp. The finger pulp is divided by fibrous septae extending from the periosteum to the dermis, creating 15-20 non-compliant small compartments in the fingertip. Abscess formation in these compartments causes significant pain and without treatment, can lead to tissue necrosis and osteomyelitis . It can occur after a known insult (i.e. thorn, splinter, paronychia, etc) however some may have no identifiable precipitating etiology.
The most common organism identified is Staphylococcus aureus. In immunocompromised patients, consider co-infection with gram-negative organisms .