๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
TRICHOEPITHELIOMA
TRICHOEPITHELIOMAย ย ICD-10: D23.L13
โข Trichoepitheliomas are benign appendage tumors with hair bulb differentiation.
โข The lesions, which appear at puberty, occur on the face (Fig. 9-41) and less often on the scalp, neck, and upper trunk.
โข Lesions may be only a few small pink or skin-colored papules. They gradually increase in number and can be confused with BCC (Fig. 9-41A).
โข Trichoepitheliomas can also appear as solitary tumors, which may be nodular (Fig. 9-41B), or appear as ill-defined plaques like sclerosing BCC.
โข Treatment: Electrocautery or excision.
A
B
FIGURE 9-41 โข Trichoepitheliomasโ(A) Multiple, small, sharply defined smooth papules that look like early BCCs. (B) Trichoepithelioma, solitary type. A nodular tumor on the upper lip that can be confused with a basal carcinoma or squamous cell carcinoma.