4例大体标本为虫体,其中3例为灰白色或淡黄色卵圆形囊性虫体,分别取自颞上方球结膜下、视盘颞下区视网膜下与下直肌,大小6 mm ×2 mm × 2 mm~10 mm × 6 mm × 4 mm,表面光滑,部分半透明,可透见白色头节(图1A),囊内充满液体;1例为不规则形状虫体,取自内直肌及周围,大小9 mm × 3 mm × 3 mm,前部细长可见白色头节,后部有囊样和囊皮样组织(图1B);仔细查找头节内有4个吸盘、1个顶突和2圈小钩。1例为眼球摘除术标本,切开眼球见视网膜完全性脱离,视网膜下为凝胶状黄绿色胶冻物,下方近中央处有一卵圆形白色物,大小约3 mm × 3 mm × 2 mm。2例取自眶前部,其中1例为黄白色无包膜组织,切面实性,黄白色,均质,边缘可见可疑囊性小结节;另1例为灰红色组织,切面实性,灰红色,质偏嫩,灶区见囊性病变,内见乳白色条索状虫体,当时未注意是虫体及查找头节(图1C)。
图1 眼囊尾蚴病大体表现
Figure 1 The gross presentation of specimen of ocular cysticercosis
(A) The bladderworm was light yellow, ovoid-shaped and translucent vesicle-like structures and the white scolex was visible; (B) The bladderworm was irregular shape; (C) The milky-white striped bladderworm was seen in the section of grayish-red specimen.
(A) Outer surface of cyst wall is distorted and wavy, and there is a “ridge-like” protrusion structure in the internal cavity space of the bladderworm (HE, ×100); (B) High magnification shows a large number of light blue calcareous corpuscles in the “ridge-like” protrusion structure of the internal cavity space of the bladderworm (HE, ×200); (C) The body wall of the bladderworm is divided into 3 parts from outside to inside: cortex, nuclear layer and stromal layer. The stromal layer contains a large number of light blue calcareous corpuscles(HE, ×100); (D) The suckers (short arrow) and small hooks (long arrow) are seen in the scolex (HE, ×200); (E) Intravitreal necrotic cysticercus causes granulomatous retinitis, preretinal inflammatory fibrous membrane, and tractional retinal detachment (HE, ×10);(F) The bladderworm is necrotic and disintegrating. Numerous blueviolet ovoid-shaped calcareous corpuscles are found in necroses whose surroundings are granulomatous inflammation with eosinophils (HE, ×200); (G) High magnification shows dark blue calcareous corpuscles in the bladderworm stroma (HE, ×400); (H) A large number of lymphocytes, plasma cells and eosinophils are infiltrated in tissues surrounding bladderworm and eosinophilic microabscess are formed (HE, ×40); (I) High magnification shows a small amount of dark blue calcareous corpuscle and smooth muscle in the bladderworm stroma (HE, ×200).
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