Ciwon daji na Brenner wani nau'in ciwon sukari ne na saman epithelial-stromal tumor na ovarian neoplasms . Yawancin su ba su da kyau, amma wasu na iya zama m . An fi samun su ba zato ba tsammani a kan gwajin ƙashin ƙugu ko a laparotomy . Ciwon daji na Brenner da wuya na iya faruwa a wasu wurare, gami da gwanaye . A kan babban gwajin cututtukan cututtukan fata, suna da ƙarfi, ƙayyadaddun kaifi da launin rawaya-tan launin rawaya. Kashi 90% na gefe ɗaya ne (yana tasowa a cikin ovary ɗaya, ɗayan kuma ba shi da tasiri). Ciwon daji na iya bambanta da girman daga ƙasa da 1 centimetre (0.39 in) zuwa 30 centimetres (12 in) . Ciwace-ciwacen ciwace-ciwacen daji na Brenner na iya yiwuwa amma kowannensu yana da wuya. A tarihin tarihi, akwai gidaje na sel epithelial na wucin gadi ( urothelial ) tare da tsagi na nukiliya na tsayi ( kofi wake nuclei) suna kwance a cikin stroma mai fibrous. Har ila yau, tuna cewa "kofi wake nuclei" su ne makaman nukiliya grooves kwarai pathognomonic zuwa jima'i igiyar stromal ƙari, da ovarian granulosa cell ƙari, tare da ruwa-cika sarari Call-Exner jikin tsakanin granulosa Kwayoyin.