نتایج جستجو برای: verrucous epidermal nevus
تعداد نتایج: 63257 فیلتر نتایج به سال:
Focal thickening of the calvarium, hypoplasia of the white matter, cortical calcifications, and a leptomeningeal drape that enhanced after contrast injection were demonstrated by MR in the parietooccipital region ipsilateral to a facial sebaceous nevus in a patient with epidermal nevus syndrome.
Melanocytes are pigment-producing cells derived from the neural crest. These specialized exocrine cells produce melanin, which is packaged and dispersed to neighboring keratinocytes in organelles called melanosomes. Within the melanocyte, tyrosine is converted to dopa, and then dopaquinone via the bifunctional enzyme tyrosinase. Dopaquinone is oxidized further to form the pigment melanin. Each ...
Sebaceous Nevus of Jadassohn is a hamartoma that is a combination of epidermal, follicular, sebaceous and apocrine gland abnormalities. Classically, several types of malignant and benign cutaneous neoplasms have been associated with this hamartoma. Due to the absence of a complete study in Iran for analysis of sebaceous Nevus(SN) incidence, its associated malignancy and developmental d...
The intention of this review on nevus comedonicus (NC) is to update on clinical features, pathogenesis, and therapy. NC is a rare epidermal nevus type. It is part of the nevus comedonicus syndrome, a neurocutaneous disorder with ocular, skeletal, and central nervous symptoms. Recently, acne-related signaling pathways and somatic mutations of tyrosine kinase receptors have been identified and ma...
to malignant melanoma. The exact cause is unknown. There may be hereditary factors, autosomal dominance or other multifactor determinants. Management depends upon size, location and malignant transformation. Surgical excision is the mainstay of treatment. Cultured epidermal autograph has been used successfully to cover postoperative large surface area defect. We report a one-day-old male child ...
Becker's nevus syndrome is part of the epidermal nevus syndromes and has been described with a phenotype that includes Becker's nevus, ipsilateral breast hypoplasia, and variable skeletal malformations. It is more frequent in males than in females (5 : 1) but is more relevant in females. The diagnosis is clinically based and the skin lesion must be present and no other numbered criteria have be...
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