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Acute cutaneous necrosis is characterised by a wide range of aetiologies and is associated with significant morbidity and mortality, warranting complex considerations in management. Early recognition is imperative in diagnosis and management of sudden gangrenous changes in the skin. This review discusses major causes of cutaneous necrosis, examines the need for early assessment, and integrates techniques related to diagnosis and management. The literature, available via PubMed, on acute cutaneous necrotic syndromes was reviewed to summarise causes and synthesise appropriate treatment strategies to create a clinician's guide in the early diagnosis and management of acute cutaneous necrosis. Highlighted in this article are key features associated with common causes of acute cutaneous necrosis: warfarin-induced skin necrosis, heparin-induced skin necrosis, calciphylaxis, pyoderma gangrenosum, embolic phenomena, purpura fulminans, brown recluse spider bite, necrotising fasciitis, ecthyma gangrenosum, antiphospholipid syndrome, hypergammaglobulinemia, and cryoglobulinemia. This review serves to increase recognition of these serious pathologies and complications, allowing for prompt diagnosis and swift limb- or life-saving management.

Scleroderma is a highly complex disorder in its clinical manifestations and pathogenesis. It has a wide range of clinical manifestations due to varying degrees of vasculopathy, autoimmunity, altered endothelium function, and abnormal fibrosis. The most widely used classification system grouped eosinophilic fasciitis and disabling pansclerotic morphea of childhood into the category of deep morphea. This previous classification does not include a category for overlapping conditions. A proposed new classification includes a new mixed subtype in which a combination of two or more of the previous subtypes is present in the same individual, although eosinophilic fasciitis has been excluded. We present the case of a 4-year-old boy who presented with features of disabling pansclerotic morphea and eosinophilic fasciitis simultaneously, which to our knowledge has not been previously reported. This suggests that these diseases are part of a more closely related continuum rather than separate disorders, as currently classified.

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