Classification It is important to note that while there are different forms of<unk> , they are not exclusive of each other. One can morph into another, or multiple forms can occur simultaneously. von Zumbusch acute<unk>  Von Zumbusch<unk>  is named after the German dermatologist Leo Ritter von Zumbusch (1874–1940), son of Kaspar von Zumbusch, who described the first documented case of<unk>  in the early 1900s. See Case Report #1. Sometimes all or any of<unk>  is referred to as von Zumbusch<unk> , but in the literature it is often distinguished as one specific form of<unk> . Eugene M. Farber, MD and colleagues provide a description of von Zumbusch<unk>  in "Pustular<unk> ", published in Cutis. They describe the pattern as having "waves of widespread or universally fiery redness". The affected areas are "painful and tender". Small sub-corneal pustules form, with sizes originally between 1 and 10 mm in diameter. These pustules may merge to form "yellow-green lakes of pus". The pustules dry out, and "Waves of scarlatiniform resembling scarlet fever peeling follow, removing the desiccating pustules". In regards to the onset, the von Zumbusch form may "supervene on any previous pattern of<unk> ". It also may or may not recur periodically.<unk>  of pregnancy (Impetigo herpetiformis) This form of<unk>  tends to have symmetrical and grouped features. It usually onsets early in the third trimester of pregnancy, and generally persists until the child is born, but occasionally long after. In 2009, Dr. Debeeka Hazarika, president of the North East States branch of the Indian Association of Dermatologists, Venereologists and Leprologists (IADVL), published an article titled<unk>  of pregnancy successfully treated with cyclosporine" in Indian J Dermatol Venereol Leprol. As reported by Hazarika, there have been up to nine instances where the disease was recurrent in subsequent pregnancies. See Case Report 2 In 1979, Frank R. Murphy, MD and Lewis P. Stolman, MD reported on the case of a woman who developed<unk>  in response to doses of progestins, suggesting a link between progestogens and<unk> . Most cases of<unk>  in pregnancy occur late in the third trimester, generally when production of progesterone increases. Infantile and juvenile<unk>  is a rare disease in general, but even more so in children. In 2010, an article was published in Pediatric Dermatology by the Department of Dermatology, University of São Paulo. The report acknowledged that<unk>  is a relatively common skin condition in children, but "the pustular variant is rare." Out of 1,262 cases of<unk>  in children, a "0.6% rate of pustular variants" was found. When<unk>  does occur in children, it usually appears during the first year of life. Khan et al. reported that in<unk>  patients ten or younger, less than 12% of cases are preceded by ordinary<unk> . This differs greatly from<unk>  cases in adults, where 85% of<unk>  is preceded by typical psoriatic lesions. According to the article by the University of São Paulo, mentioned above, "The onset of childhood<unk>  is generally abrupt and accompanied by toxic features." The original acute episode usually lasts a few days, but "repeated waves of inflammation and pustulation may follow." It is important that the disease is managed immediately in order to prevent life-threatening complications, such as infection or sepsis. Other complications include "metabolical, hemo-dynamic, and thermoregulatory disturbances" which occur as a result of "alterations of the epidermal barrier." See Case Report 3 Circinate and annular This type of<unk>  appears as round lesions. It begins as discrete areas that become raised and swollen. Pustules appear at the edges of the round lesions, creating rings. The pustules then dry out and leave a trail of scale as the lesion grows. See Case Report 4
Generalized pustular psoriasis
Inverse psoriasis
Guttate psoriasis
Localized pustular psoriasis
Annular pustular psoriasis
Retiform parapsoriasis
Exanthematic pustular psoriasis
Parapsoriasis