Folliculitis is the infection and inflammation of one or more hair follicles. The condition may occur anywhere on the skin except the palms of the hands and soles of the feet. The rash may appear as pimples that come to white tips on the face, chest, back, arms, legs, buttocks, or head.
Acne keloidalis nuchae is a destructive scarring folliculitis that occurs almost exclusively on the occipital scalp of people of African descent, primarily men.
Eosinophilic fasciitis, also known as "Shulman's syndrome", is a form of fasciitis, the inflammatory diseases that affect the fascia, the connective tissues surrounding muscles, blood vessels and nerves. Unlike other diseases in that category, it is limited to the arms and legs, and usually resolves itself, although some cases require corticosteroids, and some cases are associated with aplastic anemia.
ICD-10 is an international statistical classification used in health care and related industries.
Eosinophilic folliculitis is an itchy rash with an unknown cause that is most common among individuals with HIV, though it can occur in HIV-negative individuals where it is known by the eponym Ofuji disease. EF consists of itchy red bumps (papules) centered on hair follicles and typically found on the upper body, sparing the abdomen and legs. The name eosinophilic folliculitis refers to the predominant immune cells associated with the disease (eosinophils) and the involvement of the hair follicles.
Dermatitis repens is a rare, sterile, pustular eruption of the fingers and toes that slowly extends proximally.
Impetigo herpetiformis is a form of severe pustular psoriasis occurring in pregnancy which may occur during any trimester.
Erosive pustular dermatitis of the scalp presents with pustules, erosions, and crusts on the scalp of primarily older Caucasean females, and on biopsy, has a lymphoplasmacytic infiltrate with or without foreign body giant cells and pilosebaceous atrophy.
Tufted folliculitis presents with doll's hair-like bundling of follicular units, and is seen in a wide range of scarring conditions including chronic staphylococcal infection, chronic lupus erythematosus, lichen planopilaris, Graham-Little syndrome, folliculitis decalvans, acne keloidalis nuchae, immunobullous disorders, and dissecting cellulitis.
Pustulosis palmaris et plantaris is a chronic recurrent pustular dermatosis localized on the palms and soles only, characterized histologically by intraepidermal pustules filled with neutrophils. It can occur as part of the SAPHO syndrome.
Annular pustular psoriasis is a rare variant of pustular psoriasis, having an annular, or circinate, lesion morphology that may appear at the onset of pustular psoriasis, with a tendency to spread and form enlarged rings.
Transient neonatal pustular melanosis is a cutaneous condition that presents at birth with 1- to 3-mm flaccid, superficial fragile pustules, some of which may have already resolved in utero, leaving pigmented macules.
Pityrosporum folliculitis or Malassezia folliculitis is a skin condition caused by infection by pityrosporum yeast.
Majocchi's granuloma, which is a localized form of fungal folliculitis, is a skin condition characterized by a deep, pustular plaques and is a form of tinea corporis. Lesions often have a pink and scaly central component with pustules or folliculocentric papules at the periphery. The name Majocchi's comes from the Professor Domenico Majocchi who first discovered the disorder in 1883. Domenico Majocchi was a professor of dermatology at the University of Parma and later the University of Bologna. The most common dermatophyte is called Trichophyton rubrum. This disease commonly affects both immunocompetent and immunocompromised hosts. However, immunocompromised individuals have a higher risk.
Superficial pustular folliculitis is a superficial folliculitis with thin-walled pustules at the follicular openings.
Eosinophilic vasculitis is a cutaneous condition characterized by an inflammation of blood vessels and the presence of eosinophils.
Lupoid sycosis is a cutaneous condition that is characterized by a scarring form of deep folliculitis, typically affecting the beard area.
Irritant folliculitis is a cutaneous condition and usually occurs following the application of topical medications.
