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Difference between revisions of "Melanocytic lesions"
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replace WMSP
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| no nests, epidermis only | | no nests, epidermis only | ||
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| <ref>WMSP | | <ref name=Ref_WMSP498>{{Ref WMSP|498}}</ref> | ||
|- | |- | ||
| Junctional melanocytic nevus | | Junctional melanocytic nevus | ||
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| nests in epidermis | | nests in epidermis | ||
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| <ref>WMSP | | <ref name=Ref_WMSP498>{{Ref WMSP|498}}</ref> | ||
|- | |- | ||
| Compound melanocytic nevus | | Compound melanocytic nevus | ||
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| benign nests in dermis & epidermis | | benign nests in dermis & epidermis | ||
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| <ref>WMSP | | <ref name=Ref_WMSP499>{{Ref WMSP|499}}</ref> | ||
|- | |- | ||
| Intradermal melanocytic nevus | | Intradermal melanocytic nevus | ||
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| nested & individual melanocytes - only in dermis | | nested & individual melanocytes - only in dermis | ||
| | | | ||
| <ref>WMSP | | <ref name=Ref_WMSP499>{{Ref WMSP|499}}</ref> | ||
|- | |- | ||
| Spitz nevus (epithelioid and spindle-cell nevus) | | Spitz nevus (epithelioid and spindle-cell nevus) | ||
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| long axis of nests perpendicular to surface | | long axis of nests perpendicular to surface | ||
| [http://www.drmihm.com/cases/casefigure.cfm?figID=931&CaseID=51 Spitz nevus (drmihm.com)] | | [http://www.drmihm.com/cases/casefigure.cfm?figID=931&CaseID=51 Spitz nevus (drmihm.com)] | ||
| <ref>WMSP | | <ref name=Ref_WMSP499>{{Ref WMSP|499}}</ref> | ||
|- | |- | ||
| Pigmented spindle cell nevus of Reed (AKA Pigmented spindle cell nevus) | | Pigmented spindle cell nevus of Reed (AKA Pigmented spindle cell nevus) | ||
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| nests of heavily pigmented spindle cells | | nests of heavily pigmented spindle cells | ||
| [http://www.histopathology-india.net/Reed.htm Reed nevus - collection of images (histopathology-india.net)] | | [http://www.histopathology-india.net/Reed.htm Reed nevus - collection of images (histopathology-india.net)] | ||
| <ref>WMSP | | <ref name=Ref_WMSP500>{{Ref WMSP|500}}</ref> | ||
|- | |- | ||
| Blue nevus | | Blue nevus | ||
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| lentil-shaped (ovoid) nests btw collagen bundles | | lentil-shaped (ovoid) nests btw collagen bundles | ||
| | | | ||
| <ref>WMSP | | <ref name=Ref_WMSP501>{{Ref WMSP|501}}</ref> | ||
|- | |- | ||
| Cellular blue nevus | | Cellular blue nevus | ||
| Line 77: | Line 77: | ||
| dermal lesion with pigmented spindle cells & epithelioid cells | | dermal lesion with pigmented spindle cells & epithelioid cells | ||
| | | | ||
| <ref>WMSP | | <ref name=Ref_WMSP501>{{Ref WMSP|501}}</ref> | ||
|- | |- | ||
| Congenital-pattern nevi | | Congenital-pattern nevi | ||
| Line 85: | Line 85: | ||
| growth along dermal structures | | growth along dermal structures | ||
| | | | ||
| <ref>WMSP | | <ref name=Ref_WMSP501>{{Ref WMSP|501}}</ref> | ||
|- | |- | ||
| Dysplastic nevus (Clark's nevus) | | Dysplastic nevus (Clark's nevus) | ||
| Line 93: | Line 93: | ||
| melanocyte bridges, lamellar fibrosis | | melanocyte bridges, lamellar fibrosis | ||
| | | | ||
| <ref>WMSP | | <ref name=Ref_WMSP502>{{Ref WMSP|502}}</ref> | ||
|- | |- | ||
| Halo nevus | | Halo nevus | ||
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| lymphocytes +++ | | lymphocytes +++ | ||
| | | | ||
| <ref>WMSP | | <ref name=Ref_WMSP502>{{Ref WMSP|502}}</ref> | ||
|} | |} | ||
Note 1: | Note 1: | ||
| Line 113: | Line 113: | ||
===Microscopic=== | ===Microscopic=== | ||
Features:<ref>WMSP | Features:<ref name=Ref_WMSP499>{{Ref WMSP|499}}</ref> | ||
*Architecture: | *Architecture: | ||
**Nests of cells (spindle, epithelioid or spindle/epithelioid) - in both dermis and epidermis. | **Nests of cells (spindle, epithelioid or spindle/epithelioid) - in both dermis and epidermis. | ||