Dark skin focalities: Difference between revisions

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===Melanocytic lesions===
===Melanocytic lesions===
Scrolling through the epidermis at intermediate magnification and then through the dermis at a lower magnification.
Melanocytic lesions (including nevus) are the most common, and can be classified as follows:
Melanocytic lesions (including nevus) are the most common, and can be classified as follows:
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| [[File:Histopathology of dermal nevus, high magnification.jpg|160px|center|link=Dermal nevus]] '''[[Dermal nevus]]''' || [[File:Histopathology of nodular melanoma, high magnification.jpg|200px|center|link=Invasive melanoma of the skin]] '''[[Invasive melanoma of the skin|Invasive melanoma]]'''
| [[File:Histopathology of dermal nevus, high magnification.jpg|160px|center|link=Dermal nevus]] '''[[Dermal nevus]]''' || [[File:Histopathology of nodular melanoma, high magnification.jpg|200px|center|link=Invasive melanoma of the skin]] '''[[Invasive melanoma of the skin|Invasive melanoma]]'''
|}
|}
 
A '''compound nevus''' consists of both junctional and dermal melanocytic nevus nests.
Evaluation is largely based on the relative incidence and malignancy of various differential diagnoses (see pie chart). Main approaches are:
*Direct pattern recognition
*Systematic
 
Either way can be done by scrolling through the epidermis at intermediate magnification and then through the dermis at a lower magnification.


===Non-melanocytic===
===Non-melanocytic===
Retrieved from "https://patholines.org/Dark_skin_focalities"