Trichoepithelioma

Figure 5.5
A: Inverted follicular keratosis*
B: Trichoepitheliomas
* C: Syringoma
*Courtesy of Dr. Paul Getz

(Figure 5.5B)

Benign neoplasm with follicular differentiation
Presents as skin-colored papule or nodule with predilection for nose, can be solitary or multiple
Histology: symmetric growth of basaloid tumor islands forming reticulate cords with foci of bulbar differentiation, ± horn cysts
Multiple seen in Brooke–Spiegler syndrome