{"id":2414,"date":"2026-01-29T17:47:54","date_gmt":"2026-01-29T14:47:54","guid":{"rendered":"https:\/\/wiki.dev.voka.io\/glossary\/furunculo\/"},"modified":"2026-01-29T17:47:58","modified_gmt":"2026-01-29T14:47:58","slug":"furunculo","status":"publish","type":"glossary_item","link":"https:\/\/wiki.dev.voka.io\/pt\/glossario\/furunculo\/","title":{"rendered":"Fur\u00fanculo"},"content":{"rendered":"\n

O fur\u00fanculo \u00e9 uma inflama\u00e7\u00e3o purulenta necr\u00f3tica aguda de um fol\u00edculo piloso, gl\u00e2ndula seb\u00e1cea e tecido conjuntivo circundante. \u00c9 uma das formas mais comuns de piodermite estafiloc\u00f3cica (doen\u00e7as pustulosas da pele).<\/p>\n\n

Ao contr\u00e1rio de formas mais superficiais de inflama\u00e7\u00e3o (como a foliculite), o fur\u00fanculo caracteriza-se pela forma\u00e7\u00e3o de um infiltrado purulento profundo e um n\u00facleo necr\u00f3tico central. Os fur\u00fanculos m\u00faltiplos ou recorrentes s\u00e3o designados por furunculose.<\/p>\n\n

Etiologia e fisiopatologia<\/strong><\/h2>\n\n

Em mais de 90% dos casos, o principal agente causador \u00e9 o Staphylococcus aureus <\/em>. A infec\u00e7\u00e3o penetra no fol\u00edculo piloso, onde come\u00e7a a se multiplicar ativamente.<\/p>\n\n

Em resposta, desenvolve-se uma rea\u00e7\u00e3o inflamat\u00f3ria intensa. Forma-se um n\u00f3dulo denso e doloroso, tendo no seu centro necrose (morte) do pr\u00f3prio fol\u00edculo e do tecido circundante, resultando num n\u00facleo purulento necr\u00f3tico (carneg\u00e3o). Este n\u00facleo (carneg\u00e3o) \u00e9 uma caracter\u00edstica distintiva do fur\u00fanculo.<\/p>\n\n

Import\u00e2ncia cl\u00ednica<\/strong><\/h2>\n\n

Clinicamente, o desenvolvimento do fur\u00fanculo tem v\u00e1rias fases: primeiro, aparece um n\u00f3dulo vermelho doloroso, que depois aumenta de tamanho e forma uma p\u00fastula purulenta no centro. Passados alguns dias, o fur\u00fanculo \u00abamadurece\u00bb, abre-se com a drenagem do pus e a subsequente remo\u00e7\u00e3o do n\u00facleo necr\u00f3tico.<\/p>\n\n

O tratamento de fur\u00fanculos isolados e sem complica\u00e7\u00f5es \u00e9 geralmente conservador e inclui a aplica\u00e7\u00e3o de compressas mornas para acelerar o seu amadurecimento e abertura. Nunca se deve tentar espremer o fur\u00fanculo, sobretudo no rosto, devido ao risco de dissemina\u00e7\u00e3o da infec\u00e7\u00e3o pelos vasos sangu\u00edneos e desenvolvimento de complica\u00e7\u00f5es potencialmente fatais (trombose do seio cavernoso, s\u00e9psis).<\/p>\n\n

A incis\u00e3o cir\u00fargica e a drenagem, bem como a antibioticoterapia sist\u00e9mica, s\u00e3o indicadas em casos de les\u00f5es extensas, intoxica\u00e7\u00e3o grave ou localiza\u00e7\u00e3o em \u00e1reas de risco.<\/p>\n\n

Aspectos de diagn\u00f3stico diferencial<\/strong><\/h2>\n\n

Um fur\u00fanculo deve ser diferenciado de outras les\u00f5es cut\u00e2neas purulentas:<\/p>\n\n

    \n
  • Carb\u00fanculo.<\/strong> \u00c9 uma condi\u00e7\u00e3o mais grave, que consiste na inflama\u00e7\u00e3o de v\u00e1rios fol\u00edculos pilosos adjacentes, que se fundem num \u00fanico conglomerado extenso.<\/li>\n<\/ul>\n\n

    Fibroadenoma.<\/strong> Inflama\u00e7\u00e3o superficial apenas do fol\u00edculo piloso, sem forma\u00e7\u00e3o de um infiltrado profundo e n\u00facleo necr\u00f3tico.<\/p>\n","protected":false},"excerpt":{"rendered":"

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