头足类动物的寄生虫很常见,包括Aggregataspp感染。,Ichthyobodospp.,双粒,Tetraphylidea和Trypanorhynchidea的茎,和各种甲壳类动物。据报道,章鱼中的Cestodiasis,尽管以前尚未描述病变的完整组织学描述。在4种不同物种的10只章鱼中发现了寄希虫病,其中包括4只普通章鱼(章鱼),3加勒比礁章鱼(章鱼briareus),2双斑点章鱼(双章鱼),和1只巨大的太平洋章鱼(Enteroctopusdofleini)。盲肠中存在幼虫盲肠(n=5),肠(n=4),消化腺(n=3),几丁质消化道(n=2),肾附件(n=1),和唾液管(n=1)。在5个案例中,幼虫cet侵入组织,并与肠中的血细胞炎症和坏死组织束有关(n=3),消化腺(n=3),和/或肾附件(n=1)。当存在于几丁质消化道时(食道,胃)或盲肠,幼虫c虫位于中央管腔内,与病变无关。在地幔腔中发现了一个成年的a虫,与病变无关。其他常见的并发寄生虫感染包括肠Aggregataspp。感染,分支立克次体样生物感染,肠线虫病,和节肢动物相关的分支炎。
Parasitism of cephalopods is common, including infection with Aggregata spp., Ichthyobodo spp., dicyemids, cestodes of the orders Tetraphyllidea and Trypanorhynchidea, and various crustaceans. Cestodiasis in octopuses is reported, although a full histologic description of lesions has not been previously described. Cestodiasis was identified in 10 octopuses of 4 different species, which included 4 common octopuses (Octopus vulgaris), 3 Caribbean reef octopuses (Octopus briareus), 2 two-spot octopuses (Octopus bimaculoides), and 1 giant Pacific octopus (Enteroctopus dofleini). Larval cestodes were present in the cecum (n = 5), intestines (n = 4), digestive gland (n = 3), chitinous alimentary tract (n = 2), renal appendage (n = 1), and salivary duct (n = 1). In 5 cases, larval cestodes invaded tissue and were associated with hemocytic inflammation and tracts of necrotic tissue in the intestines (n = 3), digestive gland (n = 3), and/or renal appendage (n = 1). When present in the chitinous alimentary tract (esophagus, stomach) or cecum, larval cestodes were in the central lumen and not associated with lesions. One adult cestode was identified in the mantle cavity and was not associated with lesions. Other common concurrent parasitic infections included enteric Aggregata spp. infection, branchial Rickettsia-like organism infection, enteric nematodiasis, and an arthropod-associated branchitis.