Buschke-Ollendorff syndrome.

Background: Buschke-Ollendorff syndrome is a rare autosomal dominant disease featuring osteopoikilosis and skin lesions. It is caused by genetic mutations in a protein deeply involved in bone and connective tissue morphogenesis.

Methods: We describe a 39-year-old woman with Buschke-Ollendorff syndrome.

Uncombable hair syndrome, mental retardation, single palmar crease and arched palate in a patient with neurofibromatosis type I.

A 2-year-old girl presented with hair that naturally stood out from her scalp. Her mother reported that the girl's hair had been impossible to comb since the first month of life. The child's eyebrows and lashes were normal.

Videocapillaroscopy in the differential diagnosis between psoriasis and seborrheic dermatitis of the scalp.

Background: Videocapillaroscopy (VCP) can be used to explore microcirculatory modifications in skin diseases. Psoriasis shows specific capillary alterations reflecting typical histopathological changes.

Objective: To compare capillary morphology, distribution and density in psoriasis and seborrheic dermatitis of the scalp for differential diagnosis.

Videocapillaroscopic alterations in erythematotelangiectatic rosacea.

Background: Rosacea is a common chronic dermatosis that involves the cutaneous microvasculature of the face. There are no objective measures for assessing the severity of erythematotelangiectatic rosacea.

Objective: Our purpose was to characterize and provide objective measures of vessel changes in erythematotelangiectatic rosacea by videocapillaroscopy.