Acanthosis nigricans (AN) yanayin fata ne wanda ake iya gane shi ta duhu, wuraren kaurin fata da yake haifar da su, galibi a cikin dunƙulewar wuya da yatsun hannu. Wannan dermatosis galibi yana da alaƙa gabaɗaya kuma yana da alaƙa da kiba, amma kuma yana iya zama alamar wata cuta ta asali kamar mummunan ƙwayar cuta.

Bayyanar duhu, mai kauri, mai kauri da bushewa, amma mara zafi, wuraren fata fata ce ta Acanthosis nigricans. Launin launi yana haifar da hyperpigmentation (ƙara melanin) da kauri daga hyperkeratosis (ƙara keratinization). Ciwon daji kamar ƙashi na iya haɓaka. Waɗannan tabo na iya bayyana a duk sassan jiki, amma sun fi son shafar fatar jikin mutum, a matakin wuyan hannu, guntun hannu, gindi da sassan jinsi. Ana ganinsu kaɗan kaɗan akan gwiwoyi, gwiwar hannu, ƙirji da cibiya. Cikakken ganewar asali dole ne ya kawar da hasashen cutar Addison [[+ link]] wanda ke haifar da irin wannan ayyuka.

Masu binciken sun yi zargin cewa acanthosis nigricans wani martani ne na juriyar fata ga matakan insulin masu yawa, hormone da pancreas ke samarwa wanda ke daidaita glucose na jini. Wannan juriya na insulin ana iya danganta shi da cuta iri -iri, gami da kiba da nau'in ciwon sukari na 2. A cikin sautinta mai sauƙi, mafi na kowa kuma aka sani da pseudoacanthosis 'yan nigeria, Waɗannan su ne bayyanar fata da ke da alaƙa da kiba da juyawa tare da asarar nauyi. Magunguna kuma na iya zama sanadin wasu lamuran, kamar hormones girma ko wasu maganin hana haihuwa.

Acanthosis nigricans kuma na iya zama alama ta waje da bayyananniya na ɓarna, rashin nutsuwa. Wannan muguwar hanyar tana da saɓani sosai saboda cutar sanadiyyar sau da yawa tana jujjuyawa azaman ƙari mai ƙarfi: ana lura da ita a cikin 1 cikin 6 marasa lafiya da ke fama da cutar kansa, galibi suna shafar tsarin gastrointestinal ko tsarin jijiyoyin jini. -rinary. Matsakaicin tsawon rayuwar mai haƙuri da m AN ya ragu zuwa fewan shekaru. (000)

Maza da mata sun damu daidai kuma acanthosis 'yan nigeria na iya bayyana a kowane zamani, amma zai fi dacewa a girma. Lura cewa mutane masu launin fata suna yawan shafar su, don haka yaduwar NA shine 1-5% tsakanin farare da 13% tsakanin baƙar fata. (1) Ana lura da wannan bayyanar fata a kusan rabin manya masu tsananin kiba.

Cutar ba ta yaduwa. Akwai lamuran dangi na AN, tare da watsawar autosomal (haifar da cewa wanda abin ya shafa yana da haɗarin 50% na watsa cutar ga yaransu, 'yan mata da samari).

Jiyya don AN mai sauƙi ya ƙunshi rage matakin insulin a cikin jini tare da abinci mai dacewa, musamman tunda AN na iya zama alamar gargaɗin ciwon sukari. A kowane hali, ya zama dole a tuntuɓi likitan fata a yayin bayyanar yanki mai duhu da kauri. Lokacin da AN ya bayyana a cikin mutumin da ba shi da kiba, yakamata a yi cikakken bincike don tabbatar da cewa ba shi da alaƙa da asalin ciwon ƙwayar cuta.