48,836
edits
Difference between revisions of "Melanocytic lesions"
Jump to navigation
Jump to search
→Overview: more nevi
(create) |
(→Overview: more nevi) |
||
| Line 69: | Line 69: | ||
| lentil-shaped (ovoid) nests btw collagen bundles | | lentil-shaped (ovoid) nests btw collagen bundles | ||
| | | | ||
| <ref>WMSP P.501</ref> | | <ref>WMSP P.501.</ref> | ||
|- | |||
| Cellular blue nevus | |||
| congenital or acquired; usu. scalp or butt | |||
| blue flat or raised lesion | |||
| deep dermis; cells lack nucleoli; biphasic: (1) epithelioid cells with pale cytoplasm, (2) pigmented spindle cells +/- melanophages | |||
| dermal lesion with pigmented spindle cells & epithelioid cells | |||
| | |||
| <ref>WMSP P.501.</ref> | |||
|- | |||
| Congenital-pattern nevi | |||
| congenital or acquired | |||
| small, intermediate (2-20 cm) or large | |||
| extend along dermal structures (e.g. nerves, hair shafts, ducts); lacks atypia; +/-mitoses | |||
| growth along dermal structures | |||
| | |||
| <ref>WMSP P.501.</ref> | |||
|- | |||
| | |||
| | |||
| | |||
| | |||
| | |||
| | |||
| | |||
|- | |- | ||
| | | | ||