| bathing trunk nevus | These large pigmented (often hairy) congenital nevi are important because of their increased risk (10 to 15%) of conversion into malignant melanoma. A biopsy can confirm if cells have turned malignant. Any change in a pre-existing nevus should prompt a physician evaluation. (27 Sep 1997) |
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| blue nevus | A dark blue or blue-black nevus covered by smooth skin and formed by heavily pigmented spindle-shaped or dendritic melanocytes in the reticular dermis. Synonym: Jadassohn-Tieche nevus. (05 Mar 2000) |
| blue rubber bleb nevus syndrome | <radiology> Bean syndrome, sporadic (some autosomal dominant), rubbery, raised blue-black skin nevi (cavernous haemangiomata, 0.1 - 5 cm), GI mucosal haemangiomata, bowel: polypoid filling defects of varying sizes, visceral haemangiomata (by angio) associated with: leukaemia, medulloblastoma, hypernephroma, Mafucci syndrome More info: blue rubber bleb nevus syndrome (12 Dec 1998) |
| capillary nevus | Capillary haemangioma of the skin. (05 Mar 2000) |
| verrucous nevus | A skin-coloured or darker wartlike, often linear, lesion appearing at birth or early in childhood, and occurring in various sizes and locations, single or multiple. (05 Mar 2000) |
| giant hairy nevus | <dermatology> These large pigmented (often hairy) congenital nevi are important because of their increased risk (10 to 15%) of conversion into malignant melanoma. A biopsy can confirm if cells have turned malignant. Any change in a pre-existing nevus should prompt a physician evaluation. (17 Dec 1997) |
| giant pigmented nevus | These large pigmented (often hairy) congenital nevi are important because of their increased risk (10 to 15%) of conversion into malignant melanoma. A biopsy can confirm if cells have turned malignant. Any change in a pre-existing nevus should prompt a physician evaluation. (27 Sep 1997) |
| cellular blue nevus | A large, acquired blue nevus in which melanocytes are often clear and large, alternating with pigmented spindle cells and which may expand deeply into the subcutis; malignant change is very rare. (05 Mar 2000) |
| pigmented hair epidermal nevus | A nevus first seen as an irregular pigmentation of the shoulders, upper chest, or scapular area, gradually enlarging irregularly and becoming thickened and hairy. Synonym: pigmented hair epidermal nevus. (05 Mar 2000) |
| white sponge nevus | An autosomal dominant condition of the oral cavity characterised by soft, white or opalescent, thickened and corrugated folds of mucous membrane; other mucosal sites are occasionally involved simultaneously. Synonym: familial white folded dysplasia, oral epithelial nevus. (05 Mar 2000) |
| compound nevus | A nevus in which there are nests of melanocytes in the epidermal-dermal junction and in the dermis. (05 Mar 2000) |
| congenital giant pigmented nevus | These large pigmented (often hairy) congenital nevi are important because of their increased risk (10 to 15%) of conversion into malignant melanoma. A biopsy can confirm if cells have turned malignant. Any change in a pre-existing nevus should prompt a physician evaluation. (27 Sep 1997) |
| woolly-hair nevus | A circumscribed patch of fine, curly hair in an otherwise normal scalp appearing during childhood and enlarging for a period of 2 to 3 years; autosomal dominant inheritance. There is another, mostly sporadic form that may be autosomal recessive. Synonym: allotrichia circumscripta. (05 Mar 2000) |
| congenital nevus | A melanocytic nevus that is visible at birth, is often larger than an acquired nevus, and more frequently involves deeper structures. (05 Mar 2000) |
| halo nevus | A benign, sometimes multiple, melanocytic nevus in which involution occurs with a central brown mole surrounded by a uniformly depigmented zone or halo. Synonym: leukoderma acquisitum centrifugum, Sutton's disease, Sutton's nevus. (05 Mar 2000) |