107:
Histopathology is the basis of diagnosis. Stratified-squamous epithelium with a granular layer that surrounding a cystic space filled with laminated keratin and a variable number of vellus hair cysts is seen to be present. It can be difficult to distinguish from other skin conditions, including
263:
Alfaro-CastellĂłn, Patricia; MejĂa-RodrĂguez, Silvia Anett; Valencia-Herrera, Adriana; RamĂrez, Susana; Mena-Cedillos, Carlos (1 November 2012). "Dermoscopy
Distinction of Eruptive Vellus Hair Cysts with Molluscum Contagiosum and Acne Lesions".
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921:
213:
188:
132:
and drainage being the primary form of treatment when sporadic regression does not occur. The primary indication for treatment is
300:
1542:
1253:
559:
1532:
1190:
1445:
1348:
159:
1215:
75:
and extremities, often with a crusted surface. It was first described in 1977. The cysts appear similar clinically to
1679:
1647:
1475:
958:
890:
694:
554:
549:
584:
1669:
1360:
654:
99:
trait. The condition affects males and females equally, and sporadic cases usually appear at 4–18 years of age.
1574:
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1318:
1002:
951:
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117:
76:
40:
1569:
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1180:
1098:
1088:
875:
870:
619:
340:
Torchia, Daniele; Vega, Janelle; Schachner, Lawrence A. (1 February 2012). "Eruptive Vellus Hair Cysts".
1739:
1654:
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963:
835:
714:
564:
149:
236:
Patel, U; Terushkin, V; Fischer, M; Kamino, H; Patel, R (Dec 15, 2012). "Eruptive vellus hair cysts".
1622:
1563:
1325:
830:
812:
807:
767:
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35:
and extremities, often with a crusted surface. EVHC may occur randomly, or it can be inherited as an
1604:
1593:
1506:
1460:
1435:
1353:
1136:
885:
802:
781:
684:
679:
579:
39:
trait; sporadic cases usually appear at 4–18 years of age. The cysts appear similar clinically to
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molluscum contagiosum and acne vulgaris but can be corroborated with histopathology.
1686:
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68:
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137:
133:
52:
299:
Baums K, Blume-Peytavi U, Dippel E, Goerdt S, Orfanos CE (August 2000).
1128:
72:
32:
64:
24:
128:
Therapeutic techniques that are safe and effective are rare, with
179:
Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007).
1283:
372:
204:
James, William D.; Berger, Timothy G.; et al. (2006).
140:, surgery, and lasers are used as treatment modalities.
55:, surgery, and lasers are used as treatment modalities.
95:
EVHC may occur randomly, or it can be inherited as an
1730:
1702:
1603:
1592:
1393:
1334:
1281:
1246:
1127:
983:
972:
904:
732:
723:
407:
206:
1416:Disseminate and recurrent infundibulofolliculitis
515:Congenital onychodysplasia of the index fingers
231:
229:
227:
225:
1426:Erythromelanosis follicularis faciei et colli
384:
8:
51:. Histopathology is the basis of diagnosis.
1600:
980:
729:
391:
377:
369:
1421:Erosive pustular dermatosis of the scalp
841:Central centrifugal cicatricial alopecia
342:American Journal of Clinical Dermatology
301:"Guess what! Eruptive vellus hair cysts"
171:
1401:Acrokeratosis paraneoplastica of Bazex
63:Eruptive vellus hair cysts are small
7:
1765:Epidermal nevi, neoplasms, and cysts
1441:Intermittent hair–follicle dystrophy
1378:Recurrent palmoplantar hidradenitis
1259:Idiopathic facial aseptic granuloma
896:Marie Unna hereditary hypotrichosis
1119:Lupus miliaris disseminatus faciei
866:Dissecting cellulitis of the scalp
183:. St. Louis: Mosby. p. 1685.
14:
1383:Neutrophilic eccrine hidradenitis
1142:Granulomatous perioral dermatitis
354:10.2165/11589050-000000000-00000
278:10.1111/j.1525-1470.2012.01771.x
1543:Traumatic anserine folliculosis
1254:Granulomatous facial dermatitis
560:Malalignment of the nail plate
1:
1191:Erythrotelangiectatic rosacea
67:that occur most often in the
27:that occur most often in the
1446:Keratosis pilaris atropicans
1349:Folliculitis nares perforans
160:List of cutaneous conditions
1216:Persistent edema of rosacea
1781:
1648:Postmiliarial hypohidrosis
1476:Menkes kinky hair syndrome
891:Frontal fibrosing alopecia
695:Staining of the nail plate
555:Longitudinal erythronychia
550:Lichen planus of the nails
238:Dermatology Online Journal
116:It can be associated with
17:Eruptive vellus hair cysts
1533:Rubinstein–Taybi syndrome
1361:Pseudofolliculitis barbae
655:Pterygium inversum unguis
181:Dermatology: 2-Volume Set
1575:Uncombable hair syndrome
1559:Trichorrhexis invaginata
1373:Hidradenitis suppurativa
1231:Periorificial dermatitis
1553:Trichomycosis axillaris
1486:Parakeratosis pustulosa
1003:Acne miliaris necrotica
784:(male-pattern baldness)
748:noncicatricial alopecia
665:Purpura of the nail bed
118:Steatocystoma multiplex
77:steatocystoma multiplex
41:steatocystoma multiplex
1570:Trichostasis spinulosa
1264:Periorbital dermatitis
1181:Papulopustular rosacea
1099:Acne with facial edema
1089:Acne keloidalis nuchae
876:Folliculitis decalvans
871:Graham-Little syndrome
620:Onychoptosis defluvium
1740:Sebaceous hyperplasia
1655:Granulosis rubra nasi
1518:Pityriasis amiantacea
1471:Loose anagen syndrome
1411:Bubble hair deformity
1201:Gram-negative rosacea
964:Nevoid hypertrichosis
836:Pseudopelade of Brocq
715:Twenty-nail dystrophy
585:Nail–patella syndrome
565:Median nail dystrophy
266:Pediatric Dermatology
208:. Saunders Elsevier.
150:Steatocystoma simplex
1623:Miliaria crystalline
1564:Trichorrhexis nodosa
831:cicatricial alopecia
813:Alopecia neoplastica
808:Trichorrhexis nodosa
436:Yellow nail syndrome
1722:Fox–Fordyce disease
1507:Pili pseudoannulati
1461:Lichen planopilaris
1436:Hair follicle nevus
1354:Tufted folliculitis
1137:Perioral dermatitis
886:Triangular alopecia
803:Lichen planopilaris
782:Androgenic alopecia
685:Splinter hemorrhage
680:Shell nail syndrome
525:Half and half nails
81:acneiform eruptions
45:acneiform eruptions
1643:Occlusion miliaria
1633:Miliaria pustulosa
1523:Plica neuropathica
1221:Rosacea conglobata
1032:Acne medicamentosa
851:Traumatic alopecia
705:Subungual hematoma
97:autosomal dominant
37:autosomal dominant
1752:
1751:
1748:
1747:
1628:Miliaria profunda
1588:
1587:
1580:Woolly hair nevus
1466:Lichen spinulosus
1304:Trichilemmal cyst
1277:
1276:
1196:Glandular rosacea
1149:Phymatous rosacea
1079:Occupational acne
861:Hot comb alopecia
846:Pressure alopecia
823:Alopecia mucinosa
798:Traction alopecia
793:Telogen effluvium
1772:
1601:
1538:Setleis syndrome
1502:Pili multigemini
1236:Pyoderma faciale
981:
818:Anagen effluvium
730:
660:Pterygium unguis
580:Muehrcke's lines
467:Onychotillomania
393:
386:
379:
370:
365:
327:
326:
324:
323:
296:
290:
289:
260:
254:
253:
233:
220:
219:
201:
195:
194:
176:
1780:
1779:
1775:
1774:
1773:
1771:
1770:
1769:
1755:
1754:
1753:
1744:
1726:
1698:
1595:
1584:
1557:Trichorrhexis (
1389:
1330:
1299:Epidermoid cyst
1273:
1242:
1206:Steroid rosacea
1123:
1084:Acne aestivalis
1022:Excoriated acne
998:Acne conglobata
975:
968:
900:
737:
719:
690:Spotted lunulae
650:Psoriatic nails
605:Onychomatricoma
418:Onychogryphosis
403:
401:skin appendages
397:
339:
336:
334:Further reading
331:
330:
321:
319:
298:
297:
293:
262:
261:
257:
235:
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216:
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178:
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173:
168:
146:
126:
114:
105:
93:
61:
12:
11:
5:
1778:
1776:
1768:
1767:
1757:
1756:
1750:
1749:
1746:
1745:
1743:
1742:
1736:
1734:
1728:
1727:
1725:
1724:
1719:
1714:
1708:
1706:
1700:
1699:
1697:
1696:
1695:
1694:
1684:
1683:
1682:
1677:
1672:
1662:
1660:Ross' syndrome
1657:
1652:
1651:
1650:
1645:
1640:
1638:Miliaria rubra
1635:
1630:
1625:
1620:
1618:Colloid milium
1609:
1607:
1598:
1590:
1589:
1586:
1585:
1583:
1582:
1577:
1572:
1567:
1561:
1555:
1550:
1545:
1540:
1535:
1530:
1525:
1520:
1515:
1509:
1504:
1499:
1497:Pili bifurcati
1494:
1488:
1483:
1478:
1473:
1468:
1463:
1458:
1456:Koenen's tumor
1453:
1448:
1443:
1438:
1433:
1428:
1423:
1418:
1413:
1408:
1406:Acroosteolysis
1403:
1397:
1395:
1391:
1390:
1388:
1387:
1386:
1385:
1380:
1375:
1364:
1363:
1358:
1357:
1356:
1351:
1340:
1338:
1332:
1331:
1329:
1328:
1323:
1322:
1321:
1316:
1310:Steatocystoma
1308:
1307:
1306:
1301:
1293:Sebaceous cyst
1288:
1286:
1279:
1278:
1275:
1274:
1272:
1271:
1269:SAPHO syndrome
1266:
1261:
1256:
1250:
1248:
1244:
1243:
1241:
1240:
1239:
1238:
1233:
1223:
1218:
1213:
1211:Ocular rosacea
1208:
1203:
1198:
1193:
1188:
1186:Lupoid rosacea
1183:
1178:
1177:
1176:
1171:
1166:
1161:
1156:
1146:
1145:
1144:
1133:
1131:
1125:
1124:
1122:
1121:
1116:
1111:
1109:Acne necrotica
1106:
1101:
1096:
1094:Acne mechanica
1091:
1086:
1081:
1076:
1074:Acne cosmetica
1071:
1066:
1061:
1060:
1059:
1054:
1049:
1039:
1029:
1027:Acne fulminans
1024:
1019:
1013:Infantile acne
1010:
1005:
1000:
995:
989:
987:
978:
970:
969:
967:
966:
961:
956:
955:
954:
949:
944:
936:
935:
934:
929:
924:
916:
910:
908:
906:Hypertrichosis
902:
901:
899:
898:
893:
888:
879:
878:
873:
868:
863:
858:
856:Tumor alopecia
853:
848:
843:
838:
826:
825:
820:
815:
810:
805:
800:
795:
790:
785:
778:
777:
776:
775:
770:
765:
760:
743:
741:
727:
721:
720:
718:
717:
712:
707:
702:
700:Stippled nails
697:
692:
687:
682:
677:
672:
667:
662:
657:
652:
647:
645:Plummer's nail
642:
637:
632:
627:
622:
617:
612:
607:
602:
597:
592:
587:
582:
577:
572:
567:
562:
557:
552:
547:
542:
537:
532:
527:
522:
517:
512:
507:
506:
505:
500:
488:
487:
482:
475:
474:
469:
462:
461:
456:
449:
448:
443:
438:
433:
426:
425:
420:
413:
411:
405:
404:
398:
396:
395:
388:
381:
373:
367:
366:
335:
332:
329:
328:
305:Eur J Dermatol
291:
272:(6): 772–773.
255:
221:
214:
196:
189:
170:
169:
167:
164:
163:
162:
157:
152:
145:
142:
125:
122:
113:
110:
104:
101:
92:
89:
60:
59:Signs/symptoms
57:
13:
10:
9:
6:
4:
3:
2:
1777:
1766:
1763:
1762:
1760:
1741:
1738:
1737:
1735:
1733:
1729:
1723:
1720:
1718:
1717:Chromhidrosis
1715:
1713:
1710:
1709:
1707:
1705:
1701:
1693:
1690:
1689:
1688:
1685:
1681:
1678:
1676:
1673:
1671:
1668:
1667:
1666:
1665:Hyperhidrosis
1663:
1661:
1658:
1656:
1653:
1649:
1646:
1644:
1641:
1639:
1636:
1634:
1631:
1629:
1626:
1624:
1621:
1619:
1616:
1615:
1614:
1611:
1610:
1608:
1606:
1602:
1599:
1597:
1591:
1581:
1578:
1576:
1573:
1571:
1568:
1565:
1562:
1560:
1556:
1554:
1551:
1549:
1546:
1544:
1541:
1539:
1536:
1534:
1531:
1529:
1526:
1524:
1521:
1519:
1516:
1513:
1510:
1508:
1505:
1503:
1500:
1498:
1495:
1493:
1492:Pili annulati
1489:
1487:
1484:
1482:
1479:
1477:
1474:
1472:
1469:
1467:
1464:
1462:
1459:
1457:
1454:
1452:
1449:
1447:
1444:
1442:
1439:
1437:
1434:
1432:
1429:
1427:
1424:
1422:
1419:
1417:
1414:
1412:
1409:
1407:
1404:
1402:
1399:
1398:
1396:
1392:
1384:
1381:
1379:
1376:
1374:
1371:
1370:
1369:
1366:
1365:
1362:
1359:
1355:
1352:
1350:
1347:
1346:
1345:
1342:
1341:
1339:
1337:
1333:
1327:
1324:
1320:
1317:
1315:
1312:
1311:
1309:
1305:
1302:
1300:
1297:
1296:
1294:
1290:
1289:
1287:
1285:
1280:
1270:
1267:
1265:
1262:
1260:
1257:
1255:
1252:
1251:
1249:
1245:
1237:
1234:
1232:
1229:
1228:
1227:
1224:
1222:
1219:
1217:
1214:
1212:
1209:
1207:
1204:
1202:
1199:
1197:
1194:
1192:
1189:
1187:
1184:
1182:
1179:
1175:
1172:
1170:
1167:
1165:
1162:
1160:
1159:Blepharophyma
1157:
1155:
1152:
1151:
1150:
1147:
1143:
1140:
1139:
1138:
1135:
1134:
1132:
1130:
1126:
1120:
1117:
1115:
1112:
1110:
1107:
1105:
1102:
1100:
1097:
1095:
1092:
1090:
1087:
1085:
1082:
1080:
1077:
1075:
1072:
1070:
1067:
1065:
1062:
1058:
1055:
1053:
1050:
1048:
1045:
1044:
1043:
1040:
1037:
1033:
1030:
1028:
1025:
1023:
1020:
1018:
1017:Neonatal acne
1014:
1011:
1009:
1008:Tropical acne
1006:
1004:
1001:
999:
996:
994:
993:Acne vulgaris
991:
990:
988:
986:
982:
979:
977:
971:
965:
962:
960:
957:
953:
950:
948:
945:
943:
940:
939:
937:
933:
930:
928:
925:
923:
920:
919:
917:
915:
912:
911:
909:
907:
903:
897:
894:
892:
889:
887:
884:
881:
880:
877:
874:
872:
869:
867:
864:
862:
859:
857:
854:
852:
849:
847:
844:
842:
839:
837:
834:
832:
828:
827:
824:
821:
819:
816:
814:
811:
809:
806:
804:
801:
799:
796:
794:
791:
789:
788:Hypotrichosis
786:
783:
780:
779:
774:
771:
769:
766:
764:
761:
759:
756:
755:
754:
751:
749:
745:
744:
742:
740:
735:
731:
728:
726:
722:
716:
713:
711:
710:Terry's nails
708:
706:
703:
701:
698:
696:
693:
691:
688:
686:
683:
681:
678:
676:
673:
671:
668:
666:
663:
661:
658:
656:
653:
651:
648:
646:
643:
641:
638:
636:
633:
631:
630:Onychoschizia
628:
626:
625:Onychorrhexis
623:
621:
618:
616:
613:
611:
610:Onychomycosis
608:
606:
603:
601:
600:Onychomadesis
598:
596:
593:
591:
590:Onychoatrophy
588:
586:
583:
581:
578:
576:
573:
571:
568:
566:
563:
561:
558:
556:
553:
551:
548:
546:
543:
541:
538:
536:
533:
531:
528:
526:
523:
521:
518:
516:
513:
511:
508:
504:
501:
499:
496:
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463:
460:
459:Nail clubbing
457:
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399:Disorders of
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215:0-7216-2921-0
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190:1-4160-2999-0
186:
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79:, as well as
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58:
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46:
43:, as well as
42:
38:
34:
30:
26:
22:
18:
1687:Hypohidrosis
1680:Palmoplantar
1548:Trichomegaly
1451:Kinking hair
1368:Hidradenitis
1344:Folliculitis
1336:Inflammation
1225:
1042:Halogen acne
1036:steroid acne
882:
829:
746:
670:Racquet nail
640:Pincer nails
615:Onychophosis
575:Melanonychia
545:Ingrown nail
535:Hapalonychia
510:Chevron nail
480:Ingrown nail
472:Onychophagia
446:Azure lunula
431:Beau's lines
348:(1): 19–28.
345:
341:
320:. Retrieved
311:(6): 487–9.
308:
304:
294:
269:
265:
258:
241:
237:
205:
199:
180:
174:
127:
115:
112:Associations
106:
94:
62:
23:) are small
20:
16:
15:
1670:Generalized
1481:Monilethrix
1282:Follicular
1164:Gnathophyma
1104:Pomade acne
959:Prepubertal
942:generalised
938:Congenital
927:generalised
768:universalis
675:Red lunulae
635:Platonychia
595:Onycholysis
570:Mees' lines
520:Green nails
491:ungrouped:
454:Koilonychia
441:Leukonychia
416:thickness:
1692:Anhidrosis
1512:Pili torti
1431:Hair casts
1154:Rhinophyma
1052:Bromoderma
883:ungrouped:
493:Paronychia
465:behavior:
423:Onychauxis
322:2009-03-17
166:References
69:chest wall
29:chest wall
1732:Sebaceous
1712:Body odor
1675:Gustatory
1394:Ungrouped
1319:multiplex
1247:Ungrouped
1169:Metophyma
1114:Blackhead
1057:Chloracne
1047:Iododerma
974:Acneiform
947:localised
932:patterned
922:localised
918:Acquired
914:Hirsutism
734:Hair loss
540:Hook nail
485:Anonychia
244:(12): 7.
138:Retinoids
124:Treatment
103:Diagnosis
53:Retinoids
1759:Category
1704:Apocrine
1613:Miliaria
1528:Poliosis
1226:variants
1174:Otophyma
1069:Tar acne
1064:Oil acne
976:eruption
952:X-linked
773:Ophiasis
753:Alopecia
739:Baldness
530:Hangnail
362:21958358
317:10980478
286:22639880
250:23286797
144:See also
134:cosmesis
130:incision
1605:Eccrine
1314:simplex
1129:Rosacea
1034:(e.g.,
763:totalis
503:Chronic
478:other:
452:shape:
429:color:
73:abdomen
65:lesions
33:abdomen
25:lesions
1596:glands
1490:Pili (
758:areata
360:
315:
284:
248:
212:
187:
1594:Sweat
1326:Milia
1284:cysts
498:Acute
155:Milia
91:Cause
85:milia
49:milia
985:Acne
725:Hair
409:Nail
358:PMID
313:PMID
282:PMID
246:PMID
210:ISBN
185:ISBN
83:and
47:and
21:EVHC
19:(or
350:doi
274:doi
1761::
1295:"
356:.
346:13
344:.
309:10
307:.
303:.
280:.
270:29
268:.
242:18
240:.
224:^
136:.
120:.
87:.
71:,
31:,
1566:)
1514:)
1291:"
1038:)
1015:/
833::
750::
736:/
392:e
385:t
378:v
364:.
352::
325:.
288:.
276::
252:.
218:.
193:.
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