Neutrophilic dermatosis of the dorsal hands: A review of 123 cases

Background Neutrophilic dermatosis of the dorsal hands is an uncommon localised variant of Sweet syndrome first described in 1995. It is characterised by tender erythematous plaques, pustules and bullae on the dorsa of the hands. Literature Review A total of 123 cases of NDDH are included in this review. The mean patient age was 62.1 years and there was a slight female preponderance. 78.0% of cases had reported bilateral involvement and other sites were affected in almost a third of cases. Underlying disease was found in around 40% of patients, with the most common associations being haematological disorders (gammopathies, myelodysplasias or malignancies), recent infection, solid organ tumours and inflammatory bowel disease. Systemic and/or topical corticosteroids were employed in the treatment of 88.1% of cases while dapsone, colchicine and tetracyclines were the commonest steroid-sparing agents used. Improvement was often rapid and complete resolution the norm. Conclusions Whilst being uncommon, NDDH is frequently misdiagnosed and thus, its exact prevalence is probably underestimated. This may have significant implications including treatment delays or incorrect management. Moreover, recognition of NDDH is important since a correct diagnosis should trigger a search for underlying diseases and proper treatment with corticosteroids and/or steroid-sparing agents which is almost invariably curative.