Speed rate (SR) as a new dynamic index of melanoma behavior.

Melanomas are skin tumors that show a variety of biological behavior. Some develop very fast and some other grow extremely slow, with metastasis appearing, eventually, many years after the diagnosis. The number of mitoses in primary melanoma has been related to a more aggressive tumor and may have a potential as predictive factor for cutaneous melanoma survival.

Photodynamic therapy plus topical retinoids in Darier's disease.

Darier's disease is a rare, genetically determined, chronic disorder of keratinization. Characterized clinically by a symmetrical eruption of hypercheratotic papules with predilection for the seborrhoeic areas of the body. Many treatments have been suggested: emollients, topical retinoids, dermoabrasion, topical steroids and intermittent courses of oral antibiotics.