Nevus
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| Nevus Classification and external resources | |
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| Photograph of a nevus on an arm | |
| ICD-9 | 216.0-216.9 |
| MeSH | D009506 |
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WikiDoc Resources for Nevus | |
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Evidence Based Medicine | |
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Clinical Trials | |
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Ongoing Trials on Nevus at Clinical Trials.gov Clinical Trials on Nevus at Google
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Guidelines / Policies / Govt | |
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US National Guidelines Clearinghouse on Nevus
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Commentary | |
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Definitions | |
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Patient Resources / Community | |
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Directions to Hospitals Treating Nevus Risk calculators and risk factors for Nevus
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Healthcare Provider Resources | |
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Continuing Medical Education (CME) | |
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International | |
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Businness | |
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Experimental / Informatics | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-525-6884
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Overview
Nevus (or naevus) is a general term that refers to a number of different (usually benign) pigmented lesions of the skin. Most birthmarks and moles are placed into the category of nevi.
- Melanocytic nevus: Nevus cells are normally localized in the basal layer of the epidermis. Their proliferation may appear in the form of a:
- Junctional nevus: located just superficial to the junction of the epithelium and the underlying connective tissue. A junctional nevus is flat and is not detected by palpation.
- Compound nevus: located within the interface of the epithelium and the underlying connective tissue. A compound nevus is raised and solid.
- Intradermal nevus: The most common lesion of the skin, these lie exclusively within the dermis. They are regular and round, their cells having a central nucleus and single nucleolus. Some melanocytes may present melanin pigment in the cytoplasm (dark-brown, granular).
- Intramucosal nevus: Although all oral nevi are rare, intramucosal nevi are the most commonly seen there, as they are found most frequently on the hard palate.
- Spider angioma, also known as nevus araneus
- Dysplastic nevus
- Blue nevus
- Blue Rubber Bleb Nevus Syndrome
- Nevus flammeus(port-wine stain)
- Giant Hairy Nevus: These large pigmented (often hairy) congenital nevi are important because of their increased risk (10 to 15%) of conversion into malignant melanoma.
External links
- Atlas of Pathology Section of a melanocytic nevus
- Nevus Outreach
- (French) Naevus de Becker
- Nevus Removal Technique(Camillo Il Grande)
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
