Folliculitis profunda (furuncle/carbuncle)

Last Updated: 2019-08-27

Author(s): Anzengruber F., Navarini A.

ICD11: -

Staphylodermia follicularis et perifollicularis profunda, Staphylodermia follicularis profunda necroticans, Staphylodermia follicularis profunda.

A boil is an often painful, abscending inflammation of the follicles and perifollicular with scarred healing. Several confluent boils combine to form a carbuncle.

Infection with Staphylococcus aureus, especially in patients with immunosuppression. Mostly by autoinoculation.

  • Furunkel:
  • Size-progressive pustules, which finally form a node with environmental edema. Fluctuation occurs in the course of time. Often additional crusts are visible. Pressure pain is typical. When split, pus empties. Partially red. General condition with febrile temperature, fatigue and fatigue.


  • Carbuncles:
  • Confluent boils. Oedem can result in rock-hard palpation, especially in the back area.

  • Clinic.
  • Blood count (e.g. leukaemia), ESR , temperature., possibly DM exclusion.
  • Nasal smear

Predilection sites include the outer auditory canal (extremely painful), upper lip, nose, neck, buttocks and inner thigh.

Locoregional lymphadenitis, thrombosis (sinus vein thrombosis) and thrombophlebitis in nasal and auricle furuncles, orbitaphlegmones, meningitides in centrofacial localization.

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