Erythema annulare-like pustular psoriasis

Annular Psoriasiform Eruption with Lymphocytic Infiltration of the Epidermis: A Variant of Acute Psoriasis?

“…Subsequent development of arthral gia and detection of HLA Cw7 [5] all seem to favor the diagnosis of psoriasis, especially erythema-annulare-like psoriasis [1], However, unlike erythema-annulare-like pso riasis, the clinical course of the present patient was not recurrent but rather slowly progressive. Most of all the characteristic subcorneal spongiform pustules were never found even by meticulous study of the biopsy specimen taken from the inflammatory annular edge.…”

“…Therefore it has been regarded as an intermediate type between psoria sis vulgaris and pustulosa. However, it is noteworthy that histologically all the cases of erythema-annulare-like pso riasis show spongiform pustules in the upper epidermis, which is diagnostic of pustular psoriasis [1][2][3].…”

“…Pustular psoriasis, particularly its variant erythema-annulare-like pustular psoriasis, may take annular configurations which histologically reveal neutrophilic exocytosis into the epidermis [1][2][3], Although the annular pattern may not be apparent clinically, even in the lesions of psoriasis vulgaris the most active epidermal and inflam matory changes are usually observed at the spreading mar gin of plaque type lesions [4]. We report a patient who, together with general dullness and arthralgia, rapidly developed annular psoriasiform lesions, which histolog ically, however, showed only massive lymphocytic migra tion into the hyperproliferative epidermis without any accumulation of neutrophils at the subcorneal portion.…”

Rash on the legs: thin plaques with peripheral accentuation

“…3 Distinct clinical features of the Lapière type annular psoriasis include the presence of annular and circinate plaques, often with peripheral pustulation, which tend to evolve rapidly to from large gyrate lesions that heal with minimal antipsoriatic therapy. 4 The appearance of these lesions may be associated with systemic symptoms of malaise. 1 Modes of presentation of this annular variant of psoriasis can vary.…”

Erythema annulare centrifugum‐type psoriasis: a particular variant of acute‐eruptive psoriasis

“…Diagnosis of EACP, also called annular pustular psoriasis or annular centrifugal psoriasis type Lapiere, 4,8,9 can be difficult. The ring‐form or serpiginous erythemas, variably with pustulation, scabby or colerette‐like scaling, have to be differentiated from subcorneal pustular dermatosis of Sneddon and Wilkinson, Sweet's syndrome, necrolytic migratory erythema and the annular and gyrate erythemas; but tinea corporis, pityriasis rosea, pemphigus foliaceus, dermatitis herpetiformis or a form of the variable erythrokeratodermias may also come into question 4–12 …”