melanin pigmentation

mel·a·nin pig·men·ta·tion

(melă-nin pigmĕn-tāshŭn)
Coloration due to melanin within soft tissue; may be normal or connected with disease or disorder.
References in periodicals archive ?
Histopathology of this pigmented lesion showed acanthotic epidermis with melanin pigmentation of basal keratinocytes and papillary dermal nodular accumulation of melanophages and lymphocytes, which were consistent with tumoral melanosis.
Positive regulation of melanin pigmentation by two key substrates of the melanogenic pathway, l-tyrosine and l-dopa.
Wortsman, "Melanin pigmentation in mammalian skin and its hormonal regulation," Physiological Reviews, vol.
Leucism is a condition caused by a genetic mutation which prevents the melanin pigmentation from being deposited on a bird's feathers.
The physiological accumulation of melanin pigmentation in melanocytes is manifested clinically in a variety of efflorescence on the skin, mainly moles and freckles.
We describe a case of an infected odontogenic cyst exhibiting verrucous proliferation and melanin pigmentation. It is also the first case of mortality reported among the several cases reviewed till date.
Melanin pigmentation has been recognized by many factors; the permeation of sunlight is a well recognized source of melanin pigmentation; specifically, UV radiation causes darkening of the skin and/or sunburn.
The IPL laser targets melanin pigmentation of the hair and singes each strand until it stops growth completely.
Benign oral mucosal lesions included a diagnosis of coated tongue fissured tongue geographic tongue melanin pigmentation linea alba and fordyces granules.
Melanin pigmentation is most commonly and widely seen physiologic pigmentation of oral mucosa.
Apes' pale skin, when exposed to sunlight, develops enough protective melanin pigmentation to enable tanning similar to that of light-skinned people today.
Intracellular melanin in neoplastic cells or background melanin pigmentation were absent.