Limfangiektazija jajovoda kao posljedica leiomioma mezosalpinksa u kokoši (Gallus gallus domesticus)

A rare case of oviductal lymphangiectasia was described in a 73-week old Nera-black layer, brought from a farm in the western part of Nigeria with a capacity of 41,000 birds. The layer was found dead inside the cage, without premonitory signs. Necropsy examination revealed marked oedema of the oviduct, with prominent mucosal folds. The dorsal ligament showed prominent and markedly dilated lymphatic vessels, having a discrete, soft but fi rm, pouch-like appearance and a centrally located oval-shaped, solid encapsulated tumorous mass. Histologically, there was severe oedema of the lamina propria, submucosa and muscularis of the oviduct, with ballooning dilatation of their lymphatic vessels and those of the dorsal ligament, which contained deeply eosinophilic proteinaceous fl uid and moderate mononuclear cells, mostly lymphocytes and macrophages. The tumorous mass revealed interlacing bundles of elongated cells that showed eosinophilic cytoplasm and oval to cigar-shaped nuclei. The tumorous mass was positive with Van Gieson stain. This is the fi rst reported case of oviductal lymphangiectasia secondary to mesosalphinx leiomyoma in a domestic chicken.Rijedak slučaj limfangiektazije jajovoda opisan je u 73 tjedna stare nesilice podrijetlom s farme od 41000 ptica u zapadnom dijelu Nigerije. Nesilica je nađena uginula bez prethodnih znakova bolesti. Pri razudbi je ustanovljen edem jajovoda s izraženim sluzničnim naborima. Na dorzalnom ligamentu isticale su se znatno proširene limfne žile s mekanom, ali čvrstom vrećastom tvorevinom u čijem se središtu nalazila jajasta, solidna, učahurena tumorska masa. Histološki je ustanovljen jak edem lamine proprije te submukoze i mišićnice jajovoda s balonskim proširenjem njegovih limfnih žila i onih na dorzalnom ligamentu koje su sadržavale bjelančevinsku tekućinu i eozinofile te nešto mononuklearnih stanica, pretežito limfocita i makrofaga. Tumorska masa sastojala se od isprepletenih snopića izduženih stanica koje su imale eozinofilnu citoplazmu s jezgrama jajastoga do cigarastoga oblika. Tumorska masa bila je pozitivna bojenjem po Van Giesonu. To je prvi opisani slučaj limfangiektazije jajovoda kao posljedice leiomioma mezosalpinksa u domaće kokoši