figure Do 1, 4 . . . iw + ~ ae s * oe wrt a v4, ar Af te eee en we Oe ate ie ee. - ne eb Figure & Barly beta burns of skis ¢ 108)), showing oxtensive transepiderimal damage, with milder damaue to ders showing Celtular infiltrated? : Ne r rte iat : Extensive shin lesions in | fesearaald boy? ’ “Table 7 Kpilation in KRetuclap Groups? lhwidense. re AgeOtw5S id) Severity of epilation Stight (14) Figure 6. Neck tevions at 28 dasa, shawitig wel den puarialao.2 AgeHhtotds (13) 3.6 10u.0 Total ito 548 Moaaberate (J +} Sesete (5-4) CEsad The bt au 48.4 Age >16 () 1g M7 24.0 3.3 8.5 a2} 2.6 usually more severe, often with bullae formation; they aide walking painful and in) some cases ine volved secondary infections. Most of the lesions healed rapidly, with repigmentation, Microscopic studies and numerous skin biopsies during the acute stages of the lesions revealed masked epidermal injury with considerable at- raphy and Matening of rete pegs, cells with pleo- thorpice suche, peknosis and evtoplasiic halos, and giant eclls Gee Figure 9). Cells hides with pigment were frequendy present throughout the epidermis, probably accounting for the gross pigmentation af the lesions. Severe damae to the dermis and blood vessels was not observed. An unusual observation was the develapment of transient bluish-brown pigmentation of the semilunar areas of the fingernails and tocnatls, first noted about doweeks post expesure inmost af the Rotiyelip aad Ailiignac people and seen, aiieng the Amenoan group, only in Negroes. The cause of tis pAgMeniavion remains obscure, Since no specilic trearment iy kaw for bet burns. the lesions were treated by cleansing and use of ointments and lotions for svmploniaie res Piguie Bo Pot lesions at 20 diva, show ii derp tnvalye. Bacal barter thst end sew cand feat Lag dR A et 2 ~ ve dae oe Bee a a ee te aOR, fe me. Pe wer TARE WK, ee eh