Wood L M, Bacha W J
J Parasitol. 1983 Aug;69(4):682-8.
Segments of cleared intestines from chickens infected with the marine (avian) schistosome Austrobilharzia variglandis showed eggs clustered around branches of blood vessels on each side of the intestine. Most of the eggs, as seen in sections, were found in the vessels or lamina propria of the mucosa. A comparison of distribution of eggs relative to the location of adults within the intestinal vessels suggested that eggs were deposited in mucosal vessels by ovigerous females. Only immature eggs were found in blood vessels while those in or near crypts were mature. This was correlated with movement of eggs from blood vessels to the intestinal lumen. The accumulation of numerous eggs, edema, cellular infiltration, and hyperplasia of smooth muscle contributed to a substantial increase in thickness of the intestinal wall. Granulomatous responses to the presence of eggs were observed from day 12 to 18 wk PI. They ranged in nature from dense accumulations of mononuclear cells, to the appearance of fully developed granulomas, and included phagocytosis by giant cells and the Hoeppli phenomenon.
感染海洋（禽类）血吸虫Austrobilharzia variglandis的鸡的清洁肠道切片显示，虫卵聚集在肠道两侧血管分支周围。在切片中，大多数虫卵见于血管或黏膜固有层。将虫卵相对于成虫在肠道血管内位置的分布进行比较，结果表明含卵雌虫将虫卵沉积于黏膜血管中。在血管中仅发现未成熟虫卵，而在隐窝内或其附近的虫卵则为成熟虫卵。这与虫卵从血管向肠腔的移动相关。大量虫卵的积聚、水肿、细胞浸润和平滑肌增生导致肠壁厚度显著增加。在感染后12至18周观察到对虫卵存在的肉芽肿反应。其性质从单核细胞的密集积聚到完全发育的肉芽肿的出现不等，包括巨细胞的吞噬作用和赫普里现象。
