• lesion
  • Nevus sebaceus appears to respond to hormonal influences, as the lesion can be raised at birth, become flattened in childhood, and become raised again during puberty. (medscape.com)
  • Deletions of the patched gene have been identified in nevus sebaceus and may be responsible for the predisposition to the development of basal cell carcinoma and other tumors in this lesion. (medscape.com)
  • Nevus sebaceus is usually noted as a solitary lesion at birth or in early childhood, whereas the characteristic features may not develop until puberty. (medscape.com)
  • nevus of Ito a mongolian spot-like lesion having the same features as nevus of Ota except for localization to the areas of distribution of the posterior supraclavicular and lateral cutaneous brachial nerves, involving the shoulder, side of the neck, supraclavicular areas, and upper arm. (thefreedictionary.com)
  • Nevus (or nevi if multiple) is a nonspecific medical term for a visible, circumscribed, chronic lesion of the skin or mucosa . (wikipedia.org)
  • Nevus spilus (speckled lentiginous nevus): This lesion includes dark speckles within a tan-brown background. (wikipedia.org)
  • abnormalities
  • Since the original identification of Schimmelpenning syndrome, the number of findings has expanded to the point that the syndrome is associated with a considerable constellation of abnormalities. (wikipedia.org)
  • basal
  • Mixed basal-squamous cell carcinoma M8095/3 Metatypical carcinoma M8096/0 Intraepidermal epithelioma of Jadassohn (C44. (wikipedia.org)
  • Disorders
  • Prevalence is unknown, but Epidermal nevus syndrome is listed with the National Organization for Rare Disorders, which defines rare as affecting "fewer than 200,000 people in the United States. (wikipedia.org)
  • The term nevus is applied to a number of conditions caused by neoplasias and hyperplasias of melanocytes , as well as a number of pigmentation disorders, both hypermelanotic (containing increased melanin , the pigment responsible for skin color) and hypomelanotic (containing decreased melanin). (wikipedia.org)
  • Additional types of nevi do not involve disorders of pigmentation or melanocytes. (wikipedia.org)
  • mole
  • Common terms, including mole , birthmark , and beauty mark , are used to describe nevi, but these terms do not distinguish specific types of nevi from one another. (wikipedia.org)
  • occurs
  • The earlier in embryological development such a mutation occurs, the more extensive the nevi are likely to be and the greater the likelihood of other organ system involvement. (wikipedia.org)
  • Nevus sebaceus occurs with equal frequency in males and females of all races. (medscape.com)
  • usually
  • Factors to be considered include the size and location of the nevus, its cosmetic significance, and the risks and benefits of early excision (which usually requires general anesthesia) versus delayed excision (which is usually with local anesthesia). (medscape.com)
  • A nevus is usually not troublesome unless it is unsightly or disfiguring or becomes inflamed. (thefreedictionary.com)
  • acute respiratory distress syndrome (ARDS) fulminant pulmonary interstitial and alveolar edema, which usually develops within a few days after the initiating trauma, thought to result from alveolar injury that has led to increased capillary permeability. (thefreedictionary.com)
  • additional
  • Theoretically, mutations occurring very early in embryonic development give rise to more extensive epidermal nevi and may potentially affect additional organ systems [ 5 ]. (uptodate.com)