|
|
Line 106: |
Line 106: |
|
| |
|
| ==Trichilemmal carcinoma== | | ==Trichilemmal carcinoma== |
| ===General===
| | {{Main|Trichilemmal carcinoma}} |
| *Super rare.
| |
| *Not well-described.
| |
| | |
| ===Microscopic===
| |
| Features:<ref>{{Ref Derm|399-400}}</ref>
| |
| *Clear (glycogen-rich) cytoplasm in center of lesion.
| |
| *Peripheral palisading at edge of lesion - root sheath differentiation (hair follicle).
| |
| *Contiguous with hair follicle ''or'' assoc. with [[trichilemmoma]].
| |
| | |
| DDx:
| |
| *[[Squamous cell carcinoma]], clear cell variant.
| |
| *[[Basal cell carcinoma]], clear cell variant.
| |
| *[[Trichilemmoma]].
| |
|
| |
|
| ==Lymphomatoid papulosis== | | ==Lymphomatoid papulosis== |