Rune Hörnqvist

Fifty-one patients, thirty-nine women and twelve men, with Pityrosporum folliculitis are described. This investigation clearly demonstrates that Pityrosporum folliculitis is a real entity. The diagnosis is based primarily on the clinical picture, direct microscopy, histopathology, and the effect of antimycotic treatment. The typical patient is a woman of 30 years with itching follicular papules and pustules localized to the upper trunk or upper arms. Direct microscopy reveals round yeast ...

Skin vessel reactivity was studied by means of an iontophoretic technique in 19 adult patients with atopic dermatitis. Fifteen patients were available for reinvestigation some 6 months later in winter. Compared with a control group, we found a significantly increased sensitivity in summer of dermal skin vessels toward the alpha 1-agonist phenylephrine. Patients with elevated serum IgE levels seemed to be more sensitive to phenylephrine. However, the difference was not significant. ...

Iontophoresis was used to evaluate the peripheral reactivity of phenylephrine (alpha 1-agonist), isoproterenol (beta-agonist) and metacholine (cholinergic agonist) in patients with Alzheimer's disease (AD). The cutaneous responses--erythema and blanching--were visually recorded. Healthy personnel, medical students and patients with various dermatoses served as controls. A reduced response towards the adrenergic agonists was seen in AD. The reduced sensitivity was highly significant for ...

A case of erythema elevatum diutinum, unresponsive to dapsone but successfully treated with colchicine, is described.