Epidermis iyo finan

Epidermis iyofinanka

Finanka waa cudur barar joogto ah oo ku dhaca timaha follicles iyo qanjidhada sebaceous, waxaana mararka qaarkood xitaa loo tixgeliyaa jawaab-celinta jireed ee bini'aadamka, maadaama ku dhawaad ​​qof walba uu la kulmo finan kala duwan inta ay nool yihiin. Waxay ku badan tahay ragga iyo dumarka qaan-gaarka ah, dumarkuna wax yar bay ka yar yihiin ragga, laakiin da'da ayaa ka horraysa tan ragga. Cilmi-baadhisyada cudurrada faafa waxay muujiyeen in qiyaastii 80% ilaa 90% dhallinyaradu ay soo gaadheen finan.
Sida laga soo xigtay pathogenesis ee finanka, finanku waxay u qaybsan yihiin saddex qaybood: ① finanka endogenous, oo ay ku jiraan finanka vulgaris, dermatitis perioral, ururinta finanka, hidradenitis suppurativa, finan dillaacsan, finanka caadada ka hor, cudurrada maqaarka ee maqaarka wejiga, iwm; ② finan dibadda ah, finanka farsamada, finanka kulaylka, finanka kaadimareenka, finanka xagaaga, finanka qoraxda, finanka daroogada, chloracne, finanka qurxinta iyo finan saliid leh; ③ finanka u eg dillaaca, oo ay ku jiraan rosacea, keloid finan qoorta, gram-negative bacilli folliculitis, finanka steroid, iyo finan la xiriira syndromes. Waxaa ka mid ah, finanka ka walaacsan goobta isqurxintu waa finan vulgaris ah.
Finanka waa cudur bararka daba-dheeraada ee pilosebaceous, iyo cudur-gaarsiintiisa ayaa asal ahaan la caddeeyay. Waxyaalaha keena caabuqa waxa lagu soo koobi karaa afar qodob: ②Adhesion ee keratinocytes ee infundibulum ee timaha follicle ayaa kordha, taas oo ah xannibaadda furitaanka; ③ finanka propionibacterium ee ku jira qanjidhada sebaceous ee timaha follicle ayaa ah mid aad u badan. ④ Kiimikada iyo dhexdhexaadiyeyaasha unugyada ayaa u horseeda dermatitis, ka dibna suppuration, burburinta timaha follicles iyo qanjidhada sebaceous.