Sweet's syndrome with pulmonary involvement.

Sweet's syndrome is an acute febrile neutrophilic dermatosis with classical clinical features. Systemic manifestations in Sweet's syndrome including fever, arthralgia, myalgia and ocular involvement are common. Pulmonary involvement is a rare manifestation that has been reported previously in 34 cases and can be fatal if left untreated.

A case of focal facial dermal dysplasia type 4.

We present a rare case of focal facial dermal dysplasia type 4 (FFDD4) in an otherwise healthy boy infant, presenting as bilateral preauricular scarlike defects surrounded by a hair collar, resembling membranous aplasia cutis congenita. The presence of a hair collar supports the hypothesis that FFDD is caused by abnormal closure at facial embryonic fusion lines, but unlike midline scalp defects is not associated with neurological compromise. Other types of FFDD occur at different sites and can be associated with cranial dysgraphism.

Case of keratoacanthoma centrifugum marginatum treated with acitretin.

Keratoacanthoma centrifugum marginatum (KCM) is a rare variant of keratoacanthoma (KA), characterised by a progressively expanding tumour with a lack of spontaneous remission and significant scarring. KCM has been reported previously in less than 50 cases worldwide. We present the case of a large solitary KCM on the right shin of a 71-year-old woman.