Erythema annulare centrifugum - I-Erythema Annulare Centrifugumhttps://en.wikipedia.org/wiki/Erythema_annulare_centrifugum
I-Erythema Annulare Centrifugum (Erythema annulare centrifugum) yisifo esichaza ukulimala kwesikhumba okubonakala ngobubomvu obufana nendandatho esakazeka ukusuka enkabeni.

Kungakhathaliseki ubudala, izilonda ziba nendandatho ebomvu ephakanyisiwe noma zibonakala njengokuhlangana kwezindandatho. Zihluka ngosayizi kusuka ku-0.5 kuya ku-8 cm (0.20–3.15 amayinithi). Ngezinye izikhathi, izilonda ziyakhula futhi zisakazeka ngokuhamba kwesikhathi; zingase zingabi nezingxenye eziphelele, kodwa zibonise izimo ezingajwayelekile.

Ukuthathwa kwesampula yesikhumba (biopsy) kungasetshenziswa ukuqinisekisa lesi sifo. Izilonda zingahlala isikhathi esingafika ezinyangeni ezingu-11. Ngokuvamile, akudingeki ukwelashwa, kodwa ama‑topical steroid angasiza ekunciphiseni ububomvu, ukuvuvukala, nokuluma.

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References Erythema Annulare Centrifugum 29494101 
NIH
Erythema annulare centrifugum (EAC) iwuhlobo lokuqubuka okubomvu olwakha umumo wendandatho futhi lusakazeka ngaphandle, lishiya isikhungo esicacile. Uma i-EAC ivela ngenxa yomdlavuza, ibizwa ngokuthi PEACE (paraneoplastic erythema annulare centrifugum eruption). I-PEACE ivame kakhulu kwabesifazane, ngokuvamile ivela ngaphambi kokuthi umdlavuza utholakale futhi ingase ibuye ngemva kokwelashwa. I-EAC ingenye yezinhlobo eziyinhloko zokuqubuka okumise okwendandatho, enezici ezihlukile uma kuqhathaniswa namanye ama-erythemas amakhulu (erythema marginatum, erythema migrans, erythema gyratum repens).
Erythema annulare centrifugum (EAC) is an annular, erythematous lesion that appears as urticarial-like papules and enlarges centrifugally, then clears centrally. A fine scale is sometimes present inside the advancing edge, known as a trailing scale. Erythema annulare centrifugum is classified as a reactive erythema and has been associated with various underlying conditions, including malignancies. When erythema annulare centrifugum occurs as a paraneoplastic phenomenon, it has been designated PEACE (paraneoplastic erythema annulare centrifugum eruption). PEACE is more commonly seen in females, typically precedes the clinical diagnosis of malignancy, and may recur with subsequent relapses. EAC is one of the three major figurate erythemas, with EAC being the most common. These dermatoses share the common presentation of advancing erythematous, annular lesions, but are each separated by unique clinical and histopathologic characteristics. Once the other major figurate erythemas (erythema marginatum, erythema migrans, and erythema gyratum repens) are excluded, EAC often becomes a diagnosis of exclusion.
 Erythema annulare centrifugum - Case reports 23286811
I‑Erythema annulare centrifugum (EAC) iwuhlobo lokuqubuka okubomvu okwakha izimo eziyindilinga futhi kuvame ukuba nesikhumba esixegayo. Kucatshangwa ukuthi kubangelwa izici ezihlukahlukene, kodwa asinaso isiqiniseko sokuthi kwenzeka kanjani. Ngokwesilinganiso, ukuqubuka kuthatha cishe izinyanga eziyi‑11. Sixoxa ngesiguli oneminyaka engu‑50 onomlando we‑EAC obuya ngaphandle kwesizathu esicacile. Nakuba kubonakala sengathi lizobuya ngezikhathi ezithile zonyaka, leli cala limelela ubude besikhathi esibikiwe se‑EAC.
Erythema annulare centrifugum (EAC) is a type of red rash that forms circular shapes and often has flaky skin. It's thought to be triggered by various factors, but we're not sure exactly how it happens. On average, the rash lasts for about 11 months. We discuss a patient who has had EAC coming back for 50 years without a clear reason. While it does seem to come back at certain times of the year, this case represents the longest reported duration of EAC.