An Up-to-Date Approach to the Management of Dissecting Cellulitis.

Area of Science:

• Dermatology
• Inflammatory dermatoses

Background:

• Dissecting cellulitis of the scalp (DCS), also known as perifolliculitis capitis abscedens et suffodiens (PCAS), is a chronic, relapsing inflammatory skin condition.
• It is characterized by sterile pustules and nodules on the scalp, leading to sinus tract formation and scarring alopecia.
• Historically misclassified as infectious, DCS is now understood as a primary inflammatory process.

Purpose of the Study:

• To clarify the inflammatory nature of Dissecting Cellulitis of the Scalp.
• To differentiate DCS from infectious conditions and highlight its relationship with other follicular occlusion disorders.

Main Methods:

• Literature review and analysis of existing case studies.
• Comparative analysis with other conditions in the follicular occlusion tetrad.

Main Results:

• DCS presents as an inflammatory dermatosis, not primarily infectious.
• The condition involves sterile pustules and nodules, progressing to sinus tracts and scarring.
• DCS shares inflammatory characteristics with hidradenitis suppurativa, acne conglobata, and pilonidal sinus.

Conclusions:

• Dissecting cellulitis of the scalp is fundamentally an inflammatory condition.
• Secondary infections can occur but are not the primary cause of DCS.
• Understanding DCS as inflammatory aids in appropriate diagnosis and management, distinguishing it from purely infectious scalp conditions.