Perifolliculitis capitis abscedens et suffodiens (also known as "Perifolliculitis capitis abscedens et suffodiens of Hoffman," "Dissecting folliculitis," and "Dissecting cellulitis of the scalp") is an inflammatory condition of the scalp that can lead to scarring alopecia, which begins with deep inflammatory nodules, primarily over occiput, that progresses to coalescing regions of boggy scalp.