This ill diagnostic key depends on ancient bronze mirror be not being diagnosed, other pigment should eliminate to drop before making examine break sexual disease.
Often need to differentiate with the following disease:
1, anaemic mole is restricted bureau sex pigment drops spot, and be not pigment to take off break. From a child comes on, without enlarge a trend, chafe forcibly leather damage, local not aglow, and all round normal skin is aglow.
2, mottled disease is euchromosome dominance hereditary disease, when leather damage is born, have namely, the commonnest at frontal ministry, amalgamative have white hair, blaze often shows triangle or lozenge, bosom, abdomen, limb carries Yike to send rash nearly, leather damage volume does not rise along with the age and change, partial patient still can incorporate have other growth unusual.
3, after colorless element mole is born or be born, happen namely before long, for the state clear pigment drops spot, last all one's life changeless. Constituent pathology shows number of black element cell normal or decrease, volume of black element body and function are normal.
4, send a gender especially drop record pigment drops and senile sex blaze is former the circle that is clear about to deliver a state more or polygonal blaze, diametical 2~6cm, common extend side at antebrachium and crus, increase along with the age and number increases. Latter and common at the old person, basically see at bosom, back, limb, for blaze of fabaceous big circle, cave a bit, medicinal powder in distributing, not shirt-sleeve.
5, other need sometimes attention and tinea versicolor, pure pigment of branny rash be caused by drops spot is differentiated, still with leprosy blaze, 2 period syphilis blaze is differentiated.