Dermacentor andersoni, 559 Dermacentor variabilis, 559 Dermal melanocytosis, 466 Dermatitis allergic contact, 434 asteatotic eczema, 433 atopic, 431 autoeczematization, 435 chronic, 431 contact, 434 dyshidrotic eczema, 433 herpetiformis, 448 –449 irritant contact, 435 lichen simplex chronicus, 433 nummular eczema, 432 Dermatitis herpetiformis (DH), 448 –449 Dermatologic urgencies and emergencies evaluation and decision, 641 –642 nodules, 640 –641 papules, 634 –639 papulosquamous eruptions, 649 –650 plaques, 639 –640 urticaria, 650 vascular lesions, 650 Dermatomyositis, 302 , 560 Dermatophytes, 443 , 461 Dermatophytid, 435 Dermoid cysts, 347 face and scalp lesions, 1345 , 1346 f midline neck lesions, 1347 –1348 Desmarres lid retractors, 1394 f, 1400 Desmarres retractor, 1394 Desmoglein (DGS1), 439 –440 Desmoglein (DSG3), 440 Desmoids, 350 Desmopressin (DDAVP), 430 Developmental disabilities, 97 –98