๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Acral lentigo
Acral lentigo
Clinical features Acral lentigines are small, 1โ5โฏmm diameter, circumscribed pigmented macules that present on the palms and soles.1,2 They are seen more often in blacks than in whites. Eruptive acral lentigines have been reported in patients with AIDS, and also in patients with diffuse large cell lymphoma, breast cancer, gastric adenocarcinoma, and advanced stage melanoma.3โ5 Acral lentigines are devoid of sinister potential.
Histologic features Acral lentigines are histologically identical to lentigo simplex (Fig. 25.10).
Fig. 25.10 Acral lentigo: there is marked basal cell hyperpigmentation.