๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
DYSCHROMATOSES
Dyschromatoses are characterized by the presence of both hypo- and hyperpigmentation (Figs. 67.27โ67.29). Often, at least one component of the dyspigmentation is guttate. The two classic dyschromatoses, dyschromatosis symmetrica hereditaria and dyschromatosis universalis hereditaria, are discussed in this section. A more recently recognized entity, acquired brachial cutaneous dyschromatosis, is also described. Additional dyschromatoses are listed in Table 67.11.
Fig. 67.27 Dyschromic amyloidosis cutis. An admixture of reticulated hyperpigmentation and guttate hypopigmentation are evident. Courtesy Seth J. Orlow, MD PhD.
Table 67.11 Dyschromatoses. Continued