There are few villous pe - la stomas , and they sink 绒毛白蜡气孔较少，下陷。
2.
The edge of the carcinoma arising in the villous adenoma is seen here 图示绒毛状腺瘤恶变的癌边缘。
3.
A villous adenoma averages several centimeters in diameter , and may be up to 10 cm 绒毛状腺瘤直径一般几厘米，可以达到10个厘米。
4.
The neoplastic glands are long and frond - like , similar to those seen in a villous adenoma 肿瘤腺体长并呈叶状，与绒毛状腺瘤所见相似。
5.
Microscopically , a villous adenoma is shown at its edge on the left , and projecting above the basement membrane at the right 显微镜下，左侧见绒毛状腺瘤边缘，右侧见突破基底膜。
6.
Though villous adenomas are less common than adenomatous polyps , they are much more likely to have invasive carcinoma in them ( about 40 % of villous adenomas ) 虽然绒毛状腺瘤不如腺瘤息肉那么常见，但更有可能恶变为癌（大约40 %的绒毛腺瘤） 。
7.
The histologic lesions were characterized by the remarkable atrophy of intestinal villi , basal vacuolation of enterocytes , increment of the crypt and the villus - to - crypt ratio had significantly decrease . compared with that of noninoculated control chicks . besides . intestinal villi become thin and flat . or cubic , also accompanied with necrosis . many villous enterocytes were detached from the lamina propria and the lamina propria contained a diffuse infiltrate of lymphocytes , plasma cells , macrophages . the characteristic ultrastructural changes observed by electronmicroscope were swelled mitochondria and dilated endo - plasticreticulum . ribosome on the surface of endo - plasticreticulum fall off and the number of ribosome within the cell decrease 动物回归试验中接种两周龄spf鸡， 24h后陆续发病，表现为持续性水样腹泻；剖检可见病鸡脱水、小肠内有大量的液体和气泡、肠粘膜变薄；组织学变化为肠绒毛上皮坏死、脱落，绒毛平均长度减少而隐窝深度增加，固有层中淋巴细胞浸润。其临床症状及病理组织学变化与自然发病相同。
8.
Calyx tube constricted at apex ; petals 5 , white , with pellucid dots , pubescent ; fertile stamens 5 ; filaments longer than petals , anthers 1 . 5 - 2 . 5 mm long , pubescent ; staminodes 15 , 10 of them gland - like , ovoid , inserted on the base of filaments , rest 5 globose ; style villous ; stigma dilated into an undulate crest 花萼管顶端稍缢缩；花瓣5 ，白色，有透明腺点，被短柔毛；发育雄蕊5枚，花丝长于花瓣，花约1 . 5 - 2 . 5毫米，被短柔毛；退化雄蕊15枚，其中10枚腺体状，卵球形，著生于发育雄蕊花丝基部，另5枚球形；花柱被柔毛，柱头鸡冠状。
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