Related Research Articles
Psoriasis is a long-lasting autoimmune disease characterized by patches of abnormal skin. These skin patches are typically red, dry, itchy, and scaly. On people with darker skin the patches may be purple in colour. Psoriasis varies in severity from small, localized patches to complete body coverage. Injury to the skin can trigger psoriatic skin changes at that spot, which is known as the Koebner phenomenon.
Keratoderma blennorrhagicum etymologically meaning keratinized (kerato-) skin (derma-) mucousy (blenno-) discharge (-rrhagia) are skin lesions commonly found on the palms and soles but which may spread to the scrotum, scalp and trunk. The lesions may resemble psoriasis.
Trachyonychia, sometimes called sandpapered nails, is a condition characterized by rough accentuated linear ridges on the nails of the fingers and toes. When the condition occurs on all the twenty nails of the fingers and toes, it is known as twenty-nail dystrophy, most evident in childhood, favoring males.
The term pustular psoriasis is used for a heterogeneous group of diseases that share pustular skin characteristics.
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.
Subacute cutaneous lupus erythematosus (SCLE) is a clinically distinct subset of cases of lupus erythematosus that is most often present in white women aged 15 to 40, consisting of skin lesions that are scaly and evolve as polycyclic annular lesions or plaques similar to those of plaque psoriasis.
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.
Onychauxis presents with thickened nails without deformity, and this simple thickening may be the result of trauma, acromegaly, Darier's disease, psoriasis, or pityriasis rubra pilaris, or, in some cases, hereditary.
Generalized pustular psoriasis (GPP) is an extremely rare type of psoriasis that can present in a variety of forms. Unlike the most general and common forms of psoriasis, GPP usually covers the entire body and with pus-filled blisters rather than plaques. GPP can present at any age, but is rarer in young children. It can appear with or without previous psoriasis conditions or history, and can reoccur in periodic episodes.
Localized pustular psoriasis presents as two distinct conditions that must be considered separate from generalized psoriasis, and without systemic symptoms, these two distinct varieties being pustulosis palmaris et plantaris and acrodermatitis continua.
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.
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.
IgA pemphigus is a subtype of pemphigus with two distinct forms:
Seborrheic-like psoriasis is a skin condition characterized by psoriasis with an overlapping seborrhoeic dermatitis.
Superficial pustular folliculitis is a superficial folliculitis with thin-walled pustules at the follicular openings.
Gonococcemia is a condition characterized by a hemorrhagic vesiculopustular eruption, bouts of fever, and arthralgia or actual arthritis of one or several joints.
Eosinophilic pustular folliculitis of infancy is a cutaneous condition characterized by recurrent pruritic crops of follicular vesiculopustular lesions.
Exanthematic pustular psoriasis is a cutaneous condition characterized by an acute eruption of small pustules, abruptly appearing and disappearing in a few days. It usually follows an infection or may occur as a result of administration of specific medications.
von Zumbusch (acute) generalized pustular psoriasis, is the most severe form of generalized pustular psoriasis, and can be associated with life-threatening complications.
References
- ↑ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.
- ↑ Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 978-1-4160-2999-1.
