๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Laugier-Hunziker syndrome
Laugier-Hunziker syndrome
This disorder, also known as idiopathic lenticular mucocutaneous pigmentation, is discussed under disorders of pigmentation.
1236 Melanocytic nevi
Fig. 25.5 Laugier-Hunziker syndrome: longitudinal pigmented bands in the nails. By courtesy of S.-B. Woo, MD, Harvard Medical School, Boston, USA.
Fig. 25.6 Lentigo simplex: there is acanthosis with elongation of the epidermal ridges. Basally located melanocytes are increased in number. There is excessive pigmentation of the epidermis, but no junctional activity is present.
Fig. 25.7 Lentigo simplex: close-up view showing increased numbers of melanocytes.
Fig. 25.8 Lentigo simplex: note the presence of macromelanosomes.