月归档:一月 2011

Normal squamous epithelium to the abnormal differentiation 正常鳞状上皮向异常分化

The normal cervical squamous epithelium at the left transforms to dysplastic changes on the right. There is also underlying chronic inflammation because abnormal epithelial surfaces do not provide the same protective barrier as normal epithelial surfaces do.

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squamo-columnar junction 鳞—柱交界处

This is chronic cervicitis at the squamo-columnar junction of the cervix. Small round dark lymphocytes are seen in the submucosa, and there is also hemorrhage. Chronic cervicitis is quite common.

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Cervical chronic inflammatory 宫颈慢性炎

The normal adult vaginal mucosa with a wrinkled appearance that is seen in women of reproductive years appears at the left. The cervix has been opened to reveal an endocervical canal leading to the lower uterine segment at the right … 继续阅读

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normal cervical non-keratinizing squamous epithelium正常宫颈鳞状上皮

This is normal cervical non-keratinizing squamous epithelium. The squamous cells show maturation from basal layer to surface.

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normal cervix 正常宫颈

Here is a normal cervix with a smooth, glistening mucosal surface. There is a small rim of vaginal cuff from this hysterectomy specimen. The cervical os is small and round, typical for a nulliparous woman. The os will have a … 继续阅读

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metastatic adenocarcinoma 转移性腺癌

These small lymph nodes adjacent to vessels are too small for detection by physical examination or by imaging techniques. However, one node contains metastatic adenocarcinoma. This is an example of micrometastases. The terms micrometastasis, isolated tumor cell (ITC), and circulating … 继续阅读

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Focal metastatic cancer 灶性转移性癌

In this small focus of metastatic carcinoma to the epicardium can be seen a key feature of neoplasms–angiogenesis. Note the proliferation of many small capillaries adjacent to the neoplastic cells. Neoplasms can produce factors that promote vascular growth to provide … 继续阅读

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Metastatic breast carcinoma 乳腺转移癌

Here is microscopic evidence of the spread of a carcinoma via body cavities. Metastatic breast carcinoma is present along the pleura overlying the lung.

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small tan tumor nodules 小棕褐色肿瘤结节

Neoplasms can spread by seeding within body cavities such as the pleural cavity or peritoneal cavity. This pattern of spread is more typical for carcinomas than other neoplasms. Note the multitude of small tan tumor nodules seen over the peritoneal … 继续阅读

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a breast carcinoma has spread to a lymphatic within the lung乳房癌通过淋巴转移肺

Both lymphatic and hematogenous spread of malignant neoplasms is possible to distant sites. Here, a breast carcinoma has spread to a lymphatic within the lung.

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