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Difference between revisions of "Dermatologic neoplasms"
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→Basal cell carcinoma: more, refs
(→Squamous cell carcinoma: more) |
(→Basal cell carcinoma: more, refs) |
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===Microscopic=== | ===Microscopic=== | ||
Features:<ref> | Features:<ref name=Ref_PBoD8_1180-1>{{Ref PBoD8|1180-1}}</ref> | ||
* | *Nest of hyperchromatic (i.e. blue) cells (similar in appearance to basal cells) with: | ||
* | **Palisading of cells at the edge of the cell nests. | ||
**Artefactual separation of cells (forming the nests) from the underlying stroma. | |||
Notes: | Notes: | ||
*Palisading = the long axes of the cells are alined and the axes are perpendicular to the interface between the (basaloid cell) nests and stroma. | |||
*There are various subtypes: [http://www.pathconsultddx.com/pathCon/diagnosis?pii=S1559-8675%2806%2970110-3 http://www.pathconsultddx.com/pathCon/diagnosis?pii=S1559-8675%2806%2970110-3]. | *There are various subtypes: [http://www.pathconsultddx.com/pathCon/diagnosis?pii=S1559-8675%2806%2970110-3 http://www.pathconsultddx.com/pathCon/diagnosis?pii=S1559-8675%2806%2970110-3]. | ||
DDx: | DDx: | ||
*Trichoepithelioma. | *Trichoepithelioma - no artefactual cleft.<ref name=Ref_PBoD8_1180-1>{{Ref PBoD8|1180-1}}</ref> | ||
==Melanoma== | ==Melanoma== | ||