Pigmentary mosaicism of the (hypomelanosis of) Ito type is an umbrella term, which includes phenotypes characterized by mosaic hypopigmentation in the form of streaks, whorls, patchy, or more bizarre skin configurations (running along the lines of Blaschko): these cutaneous patterns can manifest as an isolated skin disorder (pigmentary mosaicism of the Ito type) or as a complex malformation syn...

Partial unilateral lentiginosis (PUL) is an unusual pigmentary disorder characterized by numerous lentigines grouped within an area of normal skin. Although treatment is not necessary, many patients with facial PUL seek medical help for cosmetic reasons. There is no established standard treatment for PUL. Conventional lasers may cause postinflammatory hyperpigmentation because keratinocytes are...

Background: Vitiligo is a common, multifactorial, polygenic pigmentary disorder with a complex pathogenesis. Free radical and immune mediated damage of melanocytes are the most probable pathological mechanism. There have been several conflicting reports on the blood levels of vitamin B12, folate and homocysteine in vitiligo and its severity. Because of relation between vitamin B12, RBC folate a...

Vitiligo is the most frequent pigmentary disorder ( Bagherani et al., 2011; Nazer et al., 2011;Yaghoobi et al., 2011a; as cited in Wolff et al., 2007). It is an acquired, idiopathic and progressive skin disease (Bagherani et al., 2011; Shameer et al., 2005; Yaghoobi et al., 2011a), characterized by sharply demarcated depigmented lesions on any part of the body (Van Geel et al., 2004). This dise...

Cockayne's syndrome is a rare, autosomal recessive disorder characterized clinically by cachectic dwarfism, cutaneous photosensitivity, loss of adipose tissue, mental retardation, skeletal and neurological abnormalities, and pigmentary degeneration of the retina. Dental caries is a common finding. The case of a 4-year-old male with Cockayne's syndrome is presented. A dental rehabilitation invol...

cutaneous vascular and pigmentary lesions. The pregnancy of his mother and family history were unremarkable. Physical examination showed bilateral nevus flammeus involving the scalp, face, neck, trunk, upper part of the back, scrotum and the flexor sides of arms and thighs. Large, bluish-grey pigmentation was observed on the abdominal area, back, buttocks, legs and the extensor sides of the arm...